./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-horseshoe.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-horseshoe.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a1ebdea5e08fe7fb177f9715317eb0e1f1a80d35c0ea62e77ce19d6486e2cb1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:04:32,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:04:32,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:04:32,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:04:32,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:04:32,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:04:32,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:04:32,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:04:32,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:04:32,789 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:04:32,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:04:32,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:04:32,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:04:32,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:04:32,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:04:32,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:04:32,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:04:32,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:04:32,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:04:32,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:04:32,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:04:32,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:04:32,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:04:32,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:04:32,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:04:32,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:04:32,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:04:32,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:04:32,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:04:32,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:04:32,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:04:32,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:04:32,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:04:32,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:04:32,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:04:32,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:04:32,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:04:32,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:04:32,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:04:32,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:04:32,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:04:32,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-11-02 22:04:32,884 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:04:32,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:04:32,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:04:32,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:04:32,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:04:32,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:04:32,894 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:04:32,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:04:32,894 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:04:32,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:04:32,896 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:04:32,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:04:32,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:04:32,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:04:32,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:04:32,897 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:04:32,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:04:32,897 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:04:32,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:04:32,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:04:32,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:04:32,898 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-11-02 22:04:32,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:04:32,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:04:32,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:04:32,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:04:32,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:04:32,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:04:32,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:04:32,901 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:04:32,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-11-02 22:04:32,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:04:32,902 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-11-02 22:04:32,902 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-11-02 22:04:32,902 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_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a1ebdea5e08fe7fb177f9715317eb0e1f1a80d35c0ea62e77ce19d6486e2cb1 [2021-11-02 22:04:33,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:04:33,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:04:33,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:04:33,272 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:04:33,273 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:04:33,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/../../sv-benchmarks/c/weaver/popl20-horseshoe.wvr.c [2021-11-02 22:04:33,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/data/760893b33/eef7d0af157941138b21031565ed3d3a/FLAGfa1b89546 [2021-11-02 22:04:33,914 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:04:33,915 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/sv-benchmarks/c/weaver/popl20-horseshoe.wvr.c [2021-11-02 22:04:33,929 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/data/760893b33/eef7d0af157941138b21031565ed3d3a/FLAGfa1b89546 [2021-11-02 22:04:34,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/data/760893b33/eef7d0af157941138b21031565ed3d3a [2021-11-02 22:04:34,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:04:34,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:04:34,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:04:34,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:04:34,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:04:34,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@331e9ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34, skipping insertion in model container [2021-11-02 22:04:34,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:04:34,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:04:34,538 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/sv-benchmarks/c/weaver/popl20-horseshoe.wvr.c[3424,3437] [2021-11-02 22:04:34,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:04:34,556 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:04:34,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/sv-benchmarks/c/weaver/popl20-horseshoe.wvr.c[3424,3437] [2021-11-02 22:04:34,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:04:34,603 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:04:34,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34 WrapperNode [2021-11-02 22:04:34,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:04:34,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:04:34,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:04:34,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:04:34,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:04:34,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:04:34,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:04:34,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:04:34,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:04:34,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:04:34,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:04:34,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:04:34,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (1/1) ... [2021-11-02 22:04:34,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:04:34,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/z3 [2021-11-02 22:04:34,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:04:34,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:04:34,818 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-02 22:04:34,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-02 22:04:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-02 22:04:34,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-02 22:04:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-02 22:04:34,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-02 22:04:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:04:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:04:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:04:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-02 22:04:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-02 22:04:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:04:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:04:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:04:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:04:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:04:34,824 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-02 22:04:35,848 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:04:35,849 INFO L299 CfgBuilder]: Removed 41 assume(true) statements. [2021-11-02 22:04:35,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:04:35 BoogieIcfgContainer [2021-11-02 22:04:35,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:04:35,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:04:35,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:04:35,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:04:35,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:04:34" (1/3) ... [2021-11-02 22:04:35,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:04:35, skipping insertion in model container [2021-11-02 22:04:35,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:04:34" (2/3) ... [2021-11-02 22:04:35,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e99c8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:04:35, skipping insertion in model container [2021-11-02 22:04:35,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:04:35" (3/3) ... [2021-11-02 22:04:35,863 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-horseshoe.wvr.c [2021-11-02 22:04:35,870 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-02 22:04:35,870 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:04:35,870 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 22:04:35,870 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-02 22:04:35,920 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,921 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,922 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,922 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,922 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,922 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,923 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,923 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,924 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,924 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,925 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,925 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,926 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,926 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,926 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,927 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,927 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,928 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,929 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,929 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,930 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,930 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,931 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,931 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,931 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,931 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,932 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,932 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,932 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,932 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,933 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,933 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,933 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,933 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,933 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,933 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,934 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,934 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,934 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,935 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,935 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,935 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,935 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,936 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,936 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,937 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,937 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,938 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,939 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,939 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,939 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,939 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,940 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,940 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,940 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,941 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,941 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,942 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,943 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,943 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,943 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,944 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,944 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,945 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,946 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,948 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,949 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,949 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,950 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,951 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,952 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,952 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,957 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,957 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,963 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,964 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,964 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,965 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,965 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,967 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,968 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,968 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,969 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,969 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,969 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,969 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,969 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,970 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,972 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,972 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,973 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,973 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~k~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,973 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,973 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,973 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-02 22:04:35,984 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-02 22:04:36,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-11-02 22:04:36,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/z3 [2021-11-02 22:04:36,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-11-02 22:04:36,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-11-02 22:04:36,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-11-02 22:04:36,112 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=PARTIAL_ORDER_FA, 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 [2021-11-02 22:04:36,112 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-02 22:04:36,434 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-02 22:04:36,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:04:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1857869095, now seen corresponding path program 1 times [2021-11-02 22:04:36,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:04:36,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777289718] [2021-11-02 22:04:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:04:36,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:04:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:04:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:04:36,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:04:36,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777289718] [2021-11-02 22:04:36,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777289718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:04:36,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:04:36,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:04:36,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348344715] [2021-11-02 22:04:36,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:04:36,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:04:36,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:04:36,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:04:36,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:36,725 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-02 22:04:36,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.5) internal successors, (137), 2 states have internal predecessors, (137), 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) [2021-11-02 22:04:36,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:36,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:36,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:04:36,762 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-02 22:04:36,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:04:36,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1694965980, now seen corresponding path program 1 times [2021-11-02 22:04:36,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:04:36,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168648806] [2021-11-02 22:04:36,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:04:36,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:04:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:04:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:04:37,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:04:37,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168648806] [2021-11-02 22:04:37,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168648806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:04:37,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:04:37,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 22:04:37,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631092970] [2021-11-02 22:04:37,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:04:37,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:04:37,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:04:37,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:04:37,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:37,160 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-02 22:04:37,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2021-11-02 22:04:37,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:37,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:37,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:04:37,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:04:37,422 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-02 22:04:37,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:04:37,422 INFO L85 PathProgramCache]: Analyzing trace with hash -295015827, now seen corresponding path program 1 times [2021-11-02 22:04:37,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:04:37,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755507077] [2021-11-02 22:04:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:04:37,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:04:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:04:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 22:04:37,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:04:37,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755507077] [2021-11-02 22:04:37,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755507077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:04:37,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:04:37,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 22:04:37,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437049814] [2021-11-02 22:04:37,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:04:37,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:04:37,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:04:37,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:04:37,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:37,605 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-02 22:04:37,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2021-11-02 22:04:37,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:37,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:04:37,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:37,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:04:37,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:04:37,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:04:37,871 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-02 22:04:37,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:04:37,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1028857358, now seen corresponding path program 1 times [2021-11-02 22:04:37,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:04:37,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178607286] [2021-11-02 22:04:37,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:04:37,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:04:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:04:38,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-02 22:04:38,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:04:38,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178607286] [2021-11-02 22:04:38,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178607286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:04:38,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:04:38,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-02 22:04:38,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883122276] [2021-11-02 22:04:38,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:04:38,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:04:38,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:04:38,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:04:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:38,131 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-11-02 22:04:38,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2021-11-02 22:04:38,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:38,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:04:38,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:04:38,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:38,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:04:38,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:04:38,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:04:38,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:04:38,171 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-02 22:04:38,173 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-02 22:04:38,173 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-02 22:04:38,174 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-02 22:04:38,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:04:38,187 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-02 22:04:38,189 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-02 22:04:38,189 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-02 22:04:38,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:04:38 BasicIcfg [2021-11-02 22:04:38,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-02 22:04:38,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:04:38,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:04:38,193 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:04:38,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:04:35" (3/4) ... [2021-11-02 22:04:38,196 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-02 22:04:38,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-02 22:04:38,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-02 22:04:38,202 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-11-02 22:04:38,210 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-11-02 22:04:38,211 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-02 22:04:38,211 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:04:38,212 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-02 22:04:38,276 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/witness.graphml [2021-11-02 22:04:38,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:04:38,277 INFO L168 Benchmark]: Toolchain (without parser) took 4018.88 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 81.2 MB in the beginning and 76.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:04:38,278 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 111.1 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:04:38,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.15 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 83.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:04:38,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.36 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 80.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:04:38,279 INFO L168 Benchmark]: Boogie Preprocessor took 36.98 ms. Allocated memory is still 111.1 MB. Free memory was 80.8 MB in the beginning and 79.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:04:38,280 INFO L168 Benchmark]: RCFGBuilder took 1155.57 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 79.1 MB in the beginning and 104.1 MB in the end (delta: -25.0 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:04:38,280 INFO L168 Benchmark]: TraceAbstraction took 2336.36 ms. Allocated memory is still 134.2 MB. Free memory was 103.4 MB in the beginning and 81.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:04:38,280 INFO L168 Benchmark]: Witness Printer took 83.32 ms. Allocated memory is still 134.2 MB. Free memory was 81.1 MB in the beginning and 76.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:04:38,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 111.1 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.15 ms. Allocated memory is still 111.1 MB. Free memory was 80.9 MB in the beginning and 83.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.36 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 80.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.98 ms. Allocated memory is still 111.1 MB. Free memory was 80.8 MB in the beginning and 79.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1155.57 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 79.1 MB in the beginning and 104.1 MB in the end (delta: -25.0 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2336.36 ms. Allocated memory is still 134.2 MB. Free memory was 103.4 MB in the beginning and 81.1 MB in the end (delta: 22.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * Witness Printer took 83.32 ms. Allocated memory is still 134.2 MB. Free memory was 81.1 MB in the beginning and 76.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3037, positive: 2809, positive conditional: 1308, positive unconditional: 1501, negative: 228, negative conditional: 207, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2860, positive: 2809, positive conditional: 1308, positive unconditional: 1501, negative: 51, negative conditional: 30, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2860, positive: 2809, positive conditional: 1308, positive unconditional: 1501, negative: 51, negative conditional: 30, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2890, positive: 2809, positive conditional: 1023, positive unconditional: 1786, negative: 81, negative conditional: 30, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2890, positive: 2809, positive conditional: 276, positive unconditional: 2533, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2890, positive: 2809, positive conditional: 276, positive unconditional: 2533, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1371, positive: 1350, positive conditional: 6, positive unconditional: 1344, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1371, positive: 1339, positive conditional: 0, positive unconditional: 1339, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 198, positive: 52, positive conditional: 20, positive unconditional: 32, negative: 146, negative conditional: 0, negative unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2890, positive: 1459, positive conditional: 270, positive unconditional: 1189, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 1371, unknown conditional: 6, unknown unconditional: 1365] , Statistics on independence cache: Total cache size (in pairs): 1371, Positive cache size: 1350, Positive conditional cache size: 6, Positive unconditional cache size: 1344, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Eliminated conditions: 777, Maximal queried relation: 1, Independence queries for same thread: 177 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 304, Number of persistent set computation: 273, Number of trivial persistent sets: 168, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1522, positive: 1501, positive conditional: 0, positive unconditional: 1501, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3037, positive: 2809, positive conditional: 1308, positive unconditional: 1501, negative: 228, negative conditional: 207, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2860, positive: 2809, positive conditional: 1308, positive unconditional: 1501, negative: 51, negative conditional: 30, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2860, positive: 2809, positive conditional: 1308, positive unconditional: 1501, negative: 51, negative conditional: 30, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2890, positive: 2809, positive conditional: 1023, positive unconditional: 1786, negative: 81, negative conditional: 30, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2890, positive: 2809, positive conditional: 276, positive unconditional: 2533, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2890, positive: 2809, positive conditional: 276, positive unconditional: 2533, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1371, positive: 1350, positive conditional: 6, positive unconditional: 1344, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1371, positive: 1339, positive conditional: 0, positive unconditional: 1339, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 198, positive: 52, positive conditional: 20, positive unconditional: 32, negative: 146, negative conditional: 0, negative unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2890, positive: 1459, positive conditional: 270, positive unconditional: 1189, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 1371, unknown conditional: 6, unknown unconditional: 1365] , Statistics on independence cache: Total cache size (in pairs): 1371, Positive cache size: 1350, Positive conditional cache size: 6, Positive unconditional cache size: 1344, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Eliminated conditions: 777, Maximal queried relation: 1, Independence queries for same thread: 177 - 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: 127]: 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 204 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.8s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 25, 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 568 ConstructedInterpolants, 0 QuantifiedInterpolants, 864 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 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! [2021-11-02 22:04:38,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:04:38,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_074ecad4-74cb-4fbe-828e-ce0f833de41e/bin/ugemcutter-gZIa6NM3Pm/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