./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b27d2c0de3bd785d7b0c7ad6e06bc0deeddc3f352acc333757e88f24286e9797 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:14:34,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:14:34,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:14:34,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:14:34,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:14:34,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:14:34,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:14:34,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:14:34,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:14:34,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:14:34,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:14:34,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:14:34,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:14:34,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:14:34,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:14:34,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:14:34,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:14:34,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:14:34,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:14:34,772 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:14:34,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:14:34,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:14:34,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:14:34,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:14:34,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:14:34,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:14:34,803 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:14:34,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:14:34,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:14:34,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:14:34,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:14:34,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:14:34,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:14:34,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:14:34,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:14:34,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:14:34,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:14:34,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:14:34,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:14:34,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:14:34,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:14:34,823 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:14:34,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:14:34,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:14:34,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:14:34,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:14:34,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:14:34,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:14:34,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:14:34,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:14:34,882 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:14:34,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:14:34,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:14:34,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:14:34,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:14:34,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:14:34,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:14:34,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:14:34,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:14:34,885 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:14:34,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:14:34,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:14:34,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:14:34,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:14:34,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:14:34,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:14:34,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:14:34,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:14:34,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:14:34,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:14:34,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:14:34,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:14:34,889 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:14:34,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:14:34,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:14:34,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:14:34,890 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_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b27d2c0de3bd785d7b0c7ad6e06bc0deeddc3f352acc333757e88f24286e9797 [2021-11-19 05:14:35,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:14:35,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:14:35,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:14:35,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:14:35,308 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:14:35,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2021-11-19 05:14:35,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/data/070fd995a/ac372229db0a473bafda4e7851826971/FLAG2cdbf3574 [2021-11-19 05:14:35,976 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:14:35,989 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c [2021-11-19 05:14:36,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/data/070fd995a/ac372229db0a473bafda4e7851826971/FLAG2cdbf3574 [2021-11-19 05:14:36,284 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/data/070fd995a/ac372229db0a473bafda4e7851826971 [2021-11-19 05:14:36,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:14:36,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:14:36,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:14:36,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:14:36,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:14:36,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a566af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36, skipping insertion in model container [2021-11-19 05:14:36,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:14:36,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:14:36,591 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_59985a80-304a-427e-b296-72b6b7a8dce7/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c[2332,2345] [2021-11-19 05:14:36,595 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:14:36,605 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:14:36,631 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_59985a80-304a-427e-b296-72b6b7a8dce7/sv-benchmarks/c/weaver/parallel-misc-2-unrolled.wvr.c[2332,2345] [2021-11-19 05:14:36,632 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:14:36,650 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:14:36,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36 WrapperNode [2021-11-19 05:14:36,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:14:36,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:14:36,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:14:36,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:14:36,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,695 INFO L137 Inliner]: procedures = 20, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2021-11-19 05:14:36,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:14:36,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:14:36,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:14:36,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:14:36,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:14:36,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:14:36,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:14:36,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:14:36,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (1/1) ... [2021-11-19 05:14:36,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:14:36,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:14:36,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:14:36,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:14:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:14:36,817 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-19 05:14:36,817 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-19 05:14:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-19 05:14:36,818 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-19 05:14:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:14:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 05:14:36,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 05:14:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-19 05:14:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-19 05:14:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:14:36,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:14:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 05:14:36,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 05:14:36,821 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 05:14:36,900 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:14:36,902 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:14:37,098 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:14:37,133 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:14:37,133 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 05:14:37,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:37 BoogieIcfgContainer [2021-11-19 05:14:37,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:14:37,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:14:37,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:14:37,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:14:37,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:14:36" (1/3) ... [2021-11-19 05:14:37,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a5d060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:37, skipping insertion in model container [2021-11-19 05:14:37,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:36" (2/3) ... [2021-11-19 05:14:37,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a5d060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:37, skipping insertion in model container [2021-11-19 05:14:37,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:37" (3/3) ... [2021-11-19 05:14:37,147 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2021-11-19 05:14:37,154 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 05:14:37,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:14:37,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:14:37,155 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 05:14:37,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,193 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,194 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,195 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,200 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,205 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,206 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 05:14:37,230 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-19 05:14:37,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:14:37,305 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=PETRI_NET, 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 [2021-11-19 05:14:37,305 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-19 05:14:37,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 98 transitions, 212 flow [2021-11-19 05:14:37,428 INFO L129 PetriNetUnfolder]: 6/96 cut-off events. [2021-11-19 05:14:37,428 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-19 05:14:37,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 96 events. 6/96 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2021-11-19 05:14:37,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 98 transitions, 212 flow [2021-11-19 05:14:37,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 87 transitions, 186 flow [2021-11-19 05:14:37,480 INFO L129 PetriNetUnfolder]: 6/86 cut-off events. [2021-11-19 05:14:37,480 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-19 05:14:37,481 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:14:37,482 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:14:37,482 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:14:37,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:14:37,490 INFO L85 PathProgramCache]: Analyzing trace with hash 561698338, now seen corresponding path program 1 times [2021-11-19 05:14:37,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:14:37,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598790532] [2021-11-19 05:14:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:14:37,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:14:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:14:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:38,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:14:38,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598790532] [2021-11-19 05:14:38,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598790532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:14:38,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:14:38,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 05:14:38,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97417187] [2021-11-19 05:14:38,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:14:38,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:14:38,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:14:38,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:14:38,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 05:14:38,270 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 98 [2021-11-19 05:14:38,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 186 flow. Second operand has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2021-11-19 05:14:38,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:14:38,277 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 98 [2021-11-19 05:14:38,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:14:38,542 INFO L129 PetriNetUnfolder]: 19/148 cut-off events. [2021-11-19 05:14:38,543 INFO L130 PetriNetUnfolder]: For 28/30 co-relation queries the response was YES. [2021-11-19 05:14:38,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 148 events. 19/148 cut-off events. For 28/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 330 event pairs, 2 based on Foata normal form. 16/155 useless extension candidates. Maximal degree in co-relation 103. Up to 35 conditions per place. [2021-11-19 05:14:38,551 INFO L132 encePairwiseOnDemand]: 82/98 looper letters, 15 selfloop transitions, 7 changer transitions 7/92 dead transitions. [2021-11-19 05:14:38,551 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 92 transitions, 263 flow [2021-11-19 05:14:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 05:14:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-19 05:14:38,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 694 transitions. [2021-11-19 05:14:38,595 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7868480725623582 [2021-11-19 05:14:38,596 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 694 transitions. [2021-11-19 05:14:38,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 694 transitions. [2021-11-19 05:14:38,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:14:38,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 694 transitions. [2021-11-19 05:14:38,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.11111111111111) internal successors, (694), 9 states have internal predecessors, (694), 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) [2021-11-19 05:14:38,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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) [2021-11-19 05:14:38,626 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 98.0) internal successors, (980), 10 states have internal predecessors, (980), 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) [2021-11-19 05:14:38,628 INFO L186 Difference]: Start difference. First operand has 88 places, 87 transitions, 186 flow. Second operand 9 states and 694 transitions. [2021-11-19 05:14:38,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 92 transitions, 263 flow [2021-11-19 05:14:38,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 92 transitions, 249 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-19 05:14:38,640 INFO L242 Difference]: Finished difference. Result has 95 places, 83 transitions, 199 flow [2021-11-19 05:14:38,643 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=199, PETRI_PLACES=95, PETRI_TRANSITIONS=83} [2021-11-19 05:14:38,650 INFO L334 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2021-11-19 05:14:38,650 INFO L470 AbstractCegarLoop]: Abstraction has has 95 places, 83 transitions, 199 flow [2021-11-19 05:14:38,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 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) [2021-11-19 05:14:38,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:14:38,652 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:14:38,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:14:38,652 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:14:38,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:14:38,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1203505565, now seen corresponding path program 1 times [2021-11-19 05:14:38,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:14:38,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862813005] [2021-11-19 05:14:38,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:14:38,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:14:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:14:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:39,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:14:39,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862813005] [2021-11-19 05:14:39,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862813005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:14:39,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087332993] [2021-11-19 05:14:39,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:14:39,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:14:39,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:14:39,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:14:39,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 05:14:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:14:39,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 05:14:39,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:14:40,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:40,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:14:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:42,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087332993] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:14:42,449 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:14:42,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2021-11-19 05:14:42,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107325239] [2021-11-19 05:14:42,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:14:42,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:14:42,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:14:42,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:14:42,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-19 05:14:42,458 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 98 [2021-11-19 05:14:42,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 199 flow. Second operand has 13 states, 13 states have (on average 62.84615384615385) internal successors, (817), 13 states have internal predecessors, (817), 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) [2021-11-19 05:14:42,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:14:42,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 98 [2021-11-19 05:14:42,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:14:43,115 INFO L129 PetriNetUnfolder]: 131/453 cut-off events. [2021-11-19 05:14:43,115 INFO L130 PetriNetUnfolder]: For 34/40 co-relation queries the response was YES. [2021-11-19 05:14:43,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 453 events. 131/453 cut-off events. For 34/40 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2217 event pairs, 10 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 800. Up to 111 conditions per place. [2021-11-19 05:14:43,126 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 63 selfloop transitions, 14 changer transitions 1/128 dead transitions. [2021-11-19 05:14:43,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 128 transitions, 466 flow [2021-11-19 05:14:43,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 05:14:43,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-19 05:14:43,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 670 transitions. [2021-11-19 05:14:43,132 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6836734693877551 [2021-11-19 05:14:43,132 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 670 transitions. [2021-11-19 05:14:43,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 670 transitions. [2021-11-19 05:14:43,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:14:43,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 670 transitions. [2021-11-19 05:14:43,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 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) [2021-11-19 05:14:43,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-11-19 05:14:43,145 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-11-19 05:14:43,146 INFO L186 Difference]: Start difference. First operand has 95 places, 83 transitions, 199 flow. Second operand 10 states and 670 transitions. [2021-11-19 05:14:43,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 128 transitions, 466 flow [2021-11-19 05:14:43,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 128 transitions, 449 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-11-19 05:14:43,158 INFO L242 Difference]: Finished difference. Result has 98 places, 91 transitions, 266 flow [2021-11-19 05:14:43,159 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=266, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2021-11-19 05:14:43,160 INFO L334 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2021-11-19 05:14:43,161 INFO L470 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 266 flow [2021-11-19 05:14:43,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.84615384615385) internal successors, (817), 13 states have internal predecessors, (817), 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) [2021-11-19 05:14:43,162 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:14:43,163 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:14:43,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:14:43,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:14:43,382 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:14:43,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:14:43,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1609024425, now seen corresponding path program 2 times [2021-11-19 05:14:43,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:14:43,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550731954] [2021-11-19 05:14:43,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:14:43,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:14:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:14:43,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:43,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:14:43,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550731954] [2021-11-19 05:14:43,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550731954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:14:43,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:14:43,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 05:14:43,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845734415] [2021-11-19 05:14:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:14:43,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:14:43,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:14:43,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:14:43,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:14:43,558 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 98 [2021-11-19 05:14:43,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2021-11-19 05:14:43,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:14:43,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 98 [2021-11-19 05:14:43,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:14:43,890 INFO L129 PetriNetUnfolder]: 133/439 cut-off events. [2021-11-19 05:14:43,890 INFO L130 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2021-11-19 05:14:43,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 439 events. 133/439 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2097 event pairs, 49 based on Foata normal form. 1/435 useless extension candidates. Maximal degree in co-relation 557. Up to 169 conditions per place. [2021-11-19 05:14:43,897 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 47 selfloop transitions, 16 changer transitions 4/117 dead transitions. [2021-11-19 05:14:43,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 117 transitions, 513 flow [2021-11-19 05:14:43,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:14:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-19 05:14:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 471 transitions. [2021-11-19 05:14:43,902 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6865889212827988 [2021-11-19 05:14:43,903 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 471 transitions. [2021-11-19 05:14:43,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 471 transitions. [2021-11-19 05:14:43,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:14:43,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 471 transitions. [2021-11-19 05:14:43,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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) [2021-11-19 05:14:43,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 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) [2021-11-19 05:14:43,910 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 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) [2021-11-19 05:14:43,910 INFO L186 Difference]: Start difference. First operand has 98 places, 91 transitions, 266 flow. Second operand 7 states and 471 transitions. [2021-11-19 05:14:43,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 117 transitions, 513 flow [2021-11-19 05:14:43,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 117 transitions, 507 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-19 05:14:43,919 INFO L242 Difference]: Finished difference. Result has 104 places, 97 transitions, 361 flow [2021-11-19 05:14:43,919 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=361, PETRI_PLACES=104, PETRI_TRANSITIONS=97} [2021-11-19 05:14:43,920 INFO L334 CegarLoopForPetriNet]: 88 programPoint places, 16 predicate places. [2021-11-19 05:14:43,921 INFO L470 AbstractCegarLoop]: Abstraction has has 104 places, 97 transitions, 361 flow [2021-11-19 05:14:43,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 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) [2021-11-19 05:14:43,921 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:14:43,922 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:14:43,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 05:14:43,923 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:14:43,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:14:43,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1101389844, now seen corresponding path program 1 times [2021-11-19 05:14:43,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:14:43,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989175987] [2021-11-19 05:14:43,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:14:43,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:14:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:14:44,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:44,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:14:44,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989175987] [2021-11-19 05:14:44,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989175987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:14:44,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:14:44,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 05:14:44,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658959057] [2021-11-19 05:14:44,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:14:44,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:14:44,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:14:44,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:14:44,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:14:44,088 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 98 [2021-11-19 05:14:44,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 97 transitions, 361 flow. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2021-11-19 05:14:44,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:14:44,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 98 [2021-11-19 05:14:44,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:14:44,375 INFO L129 PetriNetUnfolder]: 127/420 cut-off events. [2021-11-19 05:14:44,376 INFO L130 PetriNetUnfolder]: For 548/556 co-relation queries the response was YES. [2021-11-19 05:14:44,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1067 conditions, 420 events. 127/420 cut-off events. For 548/556 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2015 event pairs, 33 based on Foata normal form. 3/415 useless extension candidates. Maximal degree in co-relation 767. Up to 201 conditions per place. [2021-11-19 05:14:44,383 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 51 selfloop transitions, 12 changer transitions 5/118 dead transitions. [2021-11-19 05:14:44,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 118 transitions, 569 flow [2021-11-19 05:14:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:14:44,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-19 05:14:44,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 471 transitions. [2021-11-19 05:14:44,387 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6865889212827988 [2021-11-19 05:14:44,388 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 471 transitions. [2021-11-19 05:14:44,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 471 transitions. [2021-11-19 05:14:44,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:14:44,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 471 transitions. [2021-11-19 05:14:44,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 67.28571428571429) internal successors, (471), 7 states have internal predecessors, (471), 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) [2021-11-19 05:14:44,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 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) [2021-11-19 05:14:44,395 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 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) [2021-11-19 05:14:44,395 INFO L186 Difference]: Start difference. First operand has 104 places, 97 transitions, 361 flow. Second operand 7 states and 471 transitions. [2021-11-19 05:14:44,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 118 transitions, 569 flow [2021-11-19 05:14:44,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 118 transitions, 561 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-11-19 05:14:44,412 INFO L242 Difference]: Finished difference. Result has 110 places, 97 transitions, 380 flow [2021-11-19 05:14:44,413 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=380, PETRI_PLACES=110, PETRI_TRANSITIONS=97} [2021-11-19 05:14:44,415 INFO L334 CegarLoopForPetriNet]: 88 programPoint places, 22 predicate places. [2021-11-19 05:14:44,416 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 97 transitions, 380 flow [2021-11-19 05:14:44,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2021-11-19 05:14:44,416 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:14:44,417 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:14:44,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 05:14:44,417 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:14:44,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:14:44,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1841963402, now seen corresponding path program 2 times [2021-11-19 05:14:44,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:14:44,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9563129] [2021-11-19 05:14:44,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:14:44,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:14:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:14:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:44,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:14:44,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9563129] [2021-11-19 05:14:44,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9563129] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:14:44,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:14:44,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 05:14:44,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341530229] [2021-11-19 05:14:44,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:14:44,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 05:14:44,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:14:44,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 05:14:44,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 05:14:44,674 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 98 [2021-11-19 05:14:44,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 97 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2021-11-19 05:14:44,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:14:44,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 98 [2021-11-19 05:14:44,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:14:45,001 INFO L129 PetriNetUnfolder]: 119/396 cut-off events. [2021-11-19 05:14:45,001 INFO L130 PetriNetUnfolder]: For 691/691 co-relation queries the response was YES. [2021-11-19 05:14:45,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 396 events. 119/396 cut-off events. For 691/691 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1690 event pairs, 39 based on Foata normal form. 6/397 useless extension candidates. Maximal degree in co-relation 903. Up to 147 conditions per place. [2021-11-19 05:14:45,008 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 51 selfloop transitions, 16 changer transitions 0/117 dead transitions. [2021-11-19 05:14:45,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 117 transitions, 622 flow [2021-11-19 05:14:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:14:45,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-19 05:14:45,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 466 transitions. [2021-11-19 05:14:45,012 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6793002915451894 [2021-11-19 05:14:45,012 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 466 transitions. [2021-11-19 05:14:45,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 466 transitions. [2021-11-19 05:14:45,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:14:45,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 466 transitions. [2021-11-19 05:14:45,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 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) [2021-11-19 05:14:45,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 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) [2021-11-19 05:14:45,019 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 98.0) internal successors, (784), 8 states have internal predecessors, (784), 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) [2021-11-19 05:14:45,020 INFO L186 Difference]: Start difference. First operand has 110 places, 97 transitions, 380 flow. Second operand 7 states and 466 transitions. [2021-11-19 05:14:45,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 117 transitions, 622 flow [2021-11-19 05:14:45,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 117 transitions, 594 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-11-19 05:14:45,033 INFO L242 Difference]: Finished difference. Result has 115 places, 102 transitions, 458 flow [2021-11-19 05:14:45,034 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=458, PETRI_PLACES=115, PETRI_TRANSITIONS=102} [2021-11-19 05:14:45,038 INFO L334 CegarLoopForPetriNet]: 88 programPoint places, 27 predicate places. [2021-11-19 05:14:45,038 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 102 transitions, 458 flow [2021-11-19 05:14:45,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.166666666666664) internal successors, (379), 6 states have internal predecessors, (379), 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) [2021-11-19 05:14:45,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 05:14:45,041 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:14:45,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 05:14:45,042 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-11-19 05:14:45,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:14:45,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1267366123, now seen corresponding path program 1 times [2021-11-19 05:14:45,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:14:45,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050707062] [2021-11-19 05:14:45,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:14:45,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:14:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:14:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:45,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:14:45,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050707062] [2021-11-19 05:14:45,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050707062] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 05:14:45,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447496521] [2021-11-19 05:14:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:14:45,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:14:45,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:14:45,382 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 05:14:45,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 05:14:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:14:45,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 05:14:45,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:14:45,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:45,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:14:46,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:14:46,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447496521] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:14:46,179 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 05:14:46,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 12 [2021-11-19 05:14:46,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584786627] [2021-11-19 05:14:46,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 05:14:46,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 05:14:46,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:14:46,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 05:14:46,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-19 05:14:46,191 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 98 [2021-11-19 05:14:46,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 102 transitions, 458 flow. Second operand has 12 states, 12 states have (on average 74.83333333333333) internal successors, (898), 12 states have internal predecessors, (898), 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) [2021-11-19 05:14:46,194 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 05:14:46,194 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 98 [2021-11-19 05:14:46,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 05:14:46,490 INFO L129 PetriNetUnfolder]: 38/237 cut-off events. [2021-11-19 05:14:46,491 INFO L130 PetriNetUnfolder]: For 415/424 co-relation queries the response was YES. [2021-11-19 05:14:46,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 237 events. 38/237 cut-off events. For 415/424 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 847 event pairs, 2 based on Foata normal form. 3/237 useless extension candidates. Maximal degree in co-relation 527. Up to 29 conditions per place. [2021-11-19 05:14:46,494 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 0 selfloop transitions, 0 changer transitions 106/106 dead transitions. [2021-11-19 05:14:46,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 106 transitions, 525 flow [2021-11-19 05:14:46,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:14:46,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-19 05:14:46,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 830 transitions. [2021-11-19 05:14:46,500 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7699443413729128 [2021-11-19 05:14:46,500 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 830 transitions. [2021-11-19 05:14:46,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 830 transitions. [2021-11-19 05:14:46,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 05:14:46,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 830 transitions. [2021-11-19 05:14:46,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.45454545454545) internal successors, (830), 11 states have internal predecessors, (830), 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) [2021-11-19 05:14:46,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 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) [2021-11-19 05:14:46,514 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 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) [2021-11-19 05:14:46,514 INFO L186 Difference]: Start difference. First operand has 115 places, 102 transitions, 458 flow. Second operand 11 states and 830 transitions. [2021-11-19 05:14:46,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 106 transitions, 525 flow [2021-11-19 05:14:46,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 106 transitions, 510 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-11-19 05:14:46,522 INFO L242 Difference]: Finished difference. Result has 119 places, 0 transitions, 0 flow [2021-11-19 05:14:46,523 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=119, PETRI_TRANSITIONS=0} [2021-11-19 05:14:46,526 INFO L334 CegarLoopForPetriNet]: 88 programPoint places, 31 predicate places. [2021-11-19 05:14:46,526 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 0 transitions, 0 flow [2021-11-19 05:14:46,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.83333333333333) internal successors, (898), 12 states have internal predecessors, (898), 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) [2021-11-19 05:14:46,531 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-19 05:14:46,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-11-19 05:14:46,532 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-11-19 05:14:46,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:14:46,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 05:14:46,762 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2021-11-19 05:14:46,768 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 05:14:46,768 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:14:46,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:14:46 BasicIcfg [2021-11-19 05:14:46,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:14:46,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:14:46,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:14:46,776 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:14:46,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:37" (3/4) ... [2021-11-19 05:14:46,780 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 05:14:46,788 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-19 05:14:46,789 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-19 05:14:46,800 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-19 05:14:46,800 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-19 05:14:46,801 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 05:14:46,801 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 05:14:46,849 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:14:46,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:14:46,851 INFO L158 Benchmark]: Toolchain (without parser) took 10560.58ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 70.9MB in the beginning and 110.5MB in the end (delta: -39.6MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2021-11-19 05:14:46,851 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 48.7MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:14:46,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.28ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 80.8MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:14:46,853 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.42ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 79.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:14:46,853 INFO L158 Benchmark]: Boogie Preprocessor took 28.36ms. Allocated memory is still 104.9MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:14:46,854 INFO L158 Benchmark]: RCFGBuilder took 410.66ms. Allocated memory is still 104.9MB. Free memory was 78.1MB in the beginning and 65.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:14:46,855 INFO L158 Benchmark]: TraceAbstraction took 9636.30ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 65.2MB in the beginning and 113.3MB in the end (delta: -48.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-11-19 05:14:46,856 INFO L158 Benchmark]: Witness Printer took 74.13ms. Allocated memory is still 169.9MB. Free memory was 113.3MB in the beginning and 110.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:14:46,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 73.4MB. Free memory was 48.7MB in the beginning and 48.7MB in the end (delta: 30.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.28ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 80.8MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.42ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 79.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.36ms. Allocated memory is still 104.9MB. Free memory was 79.4MB in the beginning and 78.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.66ms. Allocated memory is still 104.9MB. Free memory was 78.1MB in the beginning and 65.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9636.30ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 65.2MB in the beginning and 113.3MB in the end (delta: -48.2MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Witness Printer took 74.13ms. Allocated memory is still 169.9MB. Free memory was 113.3MB in the beginning and 110.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 87]: 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 5 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 292 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 292 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 74 IncrementalHoareTripleChecker+Unchecked, 274 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 682 IncrementalHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 93 mSDtfsCounter, 682 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 363 GetRequests, 304 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=458occurred in iteration=5, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 585 NumberOfCodeBlocks, 585 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 728 ConstructedInterpolants, 18 QuantifiedInterpolants, 5199 SizeOfPredicates, 19 NumberOfNonLiveVariables, 307 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 3/12 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! [2021-11-19 05:14:46,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59985a80-304a-427e-b296-72b6b7a8dce7/bin/uautomizer-ZXIjhQolGL/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