./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8 --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 2c45fd7cfbad1c12ff3ef6a6150c824b5f7de404c290f417bc2834c0c8e69422 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:26:57,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:26:57,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:26:57,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:26:57,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:26:57,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:26:57,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:26:57,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:26:57,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:26:57,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:26:57,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:26:57,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:26:57,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:26:57,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:26:57,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:26:57,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:26:57,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:26:57,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:26:57,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:26:57,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:26:57,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:26:57,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:26:57,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:26:57,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:26:57,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:26:57,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:26:57,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:26:57,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:26:57,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:26:57,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:26:57,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:26:57,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:26:57,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:26:57,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:26:57,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:26:57,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:26:57,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:26:57,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:26:57,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:26:57,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:26:57,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:26:57,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:26:57,870 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:26:57,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:26:57,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:26:57,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:26:57,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:26:57,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:26:57,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:26:57,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:26:57,874 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:26:57,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:26:57,874 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:26:57,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:26:57,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:26:57,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:26:57,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:26:57,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:26:57,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:26:57,876 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:26:57,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:26:57,876 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:26:57,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:26:57,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:26:57,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:26:57,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:26:57,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:57,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:26:57,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:26:57,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:26:57,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:26:57,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:26:57,879 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:26:57,880 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:26:57,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:26:57,880 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_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c45fd7cfbad1c12ff3ef6a6150c824b5f7de404c290f417bc2834c0c8e69422 [2022-11-16 11:26:58,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:26:58,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:26:58,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:26:58,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:26:58,280 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:26:58,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2022-11-16 11:26:58,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/data/b7e8a7977/3a04159ba94249649b33179085a7b15a/FLAGf03799773 [2022-11-16 11:26:59,010 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:26:59,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2022-11-16 11:26:59,021 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/data/b7e8a7977/3a04159ba94249649b33179085a7b15a/FLAGf03799773 [2022-11-16 11:26:59,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/data/b7e8a7977/3a04159ba94249649b33179085a7b15a [2022-11-16 11:26:59,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:26:59,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:26:59,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:59,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:26:59,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:26:59,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d88d625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59, skipping insertion in model container [2022-11-16 11:26:59,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:26:59,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:26:59,679 WARN L229 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_92f56e53-0de0-4ba8-a624-0550bb5a0780/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c[2652,2665] [2022-11-16 11:26:59,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:59,693 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:26:59,718 WARN L229 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_92f56e53-0de0-4ba8-a624-0550bb5a0780/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c[2652,2665] [2022-11-16 11:26:59,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:26:59,737 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:26:59,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59 WrapperNode [2022-11-16 11:26:59,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:26:59,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:26:59,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:26:59,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:26:59,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,785 INFO L138 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 118 [2022-11-16 11:26:59,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:26:59,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:26:59,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:26:59,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:26:59,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:26:59,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:26:59,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:26:59,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:26:59,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (1/1) ... [2022-11-16 11:26:59,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:26:59,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:26:59,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:26:59,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:26:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:26:59,916 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:26:59,916 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:26:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:26:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:26:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:26:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:26:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:26:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:26:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:26:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:26:59,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:26:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:26:59,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:26:59,920 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:27:00,035 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:27:00,038 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:27:00,313 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:27:00,441 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:27:00,441 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:27:00,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:00 BoogieIcfgContainer [2022-11-16 11:27:00,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:27:00,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:27:00,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:27:00,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:27:00,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:26:59" (1/3) ... [2022-11-16 11:27:00,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738829e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:00, skipping insertion in model container [2022-11-16 11:27:00,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:26:59" (2/3) ... [2022-11-16 11:27:00,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738829e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:27:00, skipping insertion in model container [2022-11-16 11:27:00,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:00" (3/3) ... [2022-11-16 11:27:00,471 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2022-11-16 11:27:00,498 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:27:00,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:27:00,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:27:00,525 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:27:00,702 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:27:00,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 96 transitions, 208 flow [2022-11-16 11:27:00,841 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-11-16 11:27:00,841 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:27:00,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 94 events. 2/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2022-11-16 11:27:00,846 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 96 transitions, 208 flow [2022-11-16 11:27:00,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 85 transitions, 182 flow [2022-11-16 11:27:00,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:27:00,873 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@424dc4f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:27:00,873 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-16 11:27:00,934 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2022-11-16 11:27:00,943 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:27:00,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:00,944 INFO L209 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] [2022-11-16 11:27:00,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:27:00,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:00,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1313022000, now seen corresponding path program 1 times [2022-11-16 11:27:00,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:00,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666935433] [2022-11-16 11:27:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:00,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:02,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:02,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666935433] [2022-11-16 11:27:02,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666935433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:02,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:02,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:27:02,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977225733] [2022-11-16 11:27:02,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:02,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:27:02,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:02,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:27:02,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:27:02,325 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 96 [2022-11-16 11:27:02,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 85 transitions, 182 flow. Second operand has 9 states, 9 states have (on average 68.77777777777777) internal successors, (619), 9 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:02,341 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:02,341 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 96 [2022-11-16 11:27:02,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:02,876 INFO L130 PetriNetUnfolder]: 30/185 cut-off events. [2022-11-16 11:27:02,876 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-16 11:27:02,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 185 events. 30/185 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 458 event pairs, 12 based on Foata normal form. 3/183 useless extension candidates. Maximal degree in co-relation 174. Up to 30 conditions per place. [2022-11-16 11:27:02,882 INFO L137 encePairwiseOnDemand]: 80/96 looper letters, 20 selfloop transitions, 8 changer transitions 17/101 dead transitions. [2022-11-16 11:27:02,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 101 transitions, 316 flow [2022-11-16 11:27:02,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:27:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:27:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 841 transitions. [2022-11-16 11:27:02,912 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7300347222222222 [2022-11-16 11:27:02,913 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 841 transitions. [2022-11-16 11:27:02,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 841 transitions. [2022-11-16 11:27:02,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:02,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 841 transitions. [2022-11-16 11:27:02,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 70.08333333333333) internal successors, (841), 12 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:02,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 96.0) internal successors, (1248), 13 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:02,944 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 96.0) internal successors, (1248), 13 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:02,946 INFO L175 Difference]: Start difference. First operand has 90 places, 85 transitions, 182 flow. Second operand 12 states and 841 transitions. [2022-11-16 11:27:02,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 101 transitions, 316 flow [2022-11-16 11:27:02,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 101 transitions, 300 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:27:02,956 INFO L231 Difference]: Finished difference. Result has 101 places, 81 transitions, 194 flow [2022-11-16 11:27:02,959 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=194, PETRI_PLACES=101, PETRI_TRANSITIONS=81} [2022-11-16 11:27:02,963 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 11 predicate places. [2022-11-16 11:27:02,963 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 81 transitions, 194 flow [2022-11-16 11:27:02,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 68.77777777777777) internal successors, (619), 9 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:02,964 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:02,965 INFO L209 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] [2022-11-16 11:27:02,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:27:02,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:27:02,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:02,966 INFO L85 PathProgramCache]: Analyzing trace with hash 891476232, now seen corresponding path program 2 times [2022-11-16 11:27:02,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:02,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813894013] [2022-11-16 11:27:02,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:02,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:03,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:03,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:03,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813894013] [2022-11-16 11:27:03,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813894013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:03,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:03,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:27:03,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200332064] [2022-11-16 11:27:03,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:03,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:27:03,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:03,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:27:03,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:27:03,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 96 [2022-11-16 11:27:03,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 81 transitions, 194 flow. Second operand has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:03,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:03,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 96 [2022-11-16 11:27:03,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:03,584 INFO L130 PetriNetUnfolder]: 8/131 cut-off events. [2022-11-16 11:27:03,585 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 11:27:03,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 131 events. 8/131 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 187 event pairs, 2 based on Foata normal form. 2/131 useless extension candidates. Maximal degree in co-relation 196. Up to 16 conditions per place. [2022-11-16 11:27:03,586 INFO L137 encePairwiseOnDemand]: 88/96 looper letters, 25 selfloop transitions, 9 changer transitions 3/94 dead transitions. [2022-11-16 11:27:03,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 94 transitions, 303 flow [2022-11-16 11:27:03,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:27:03,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:27:03,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 507 transitions. [2022-11-16 11:27:03,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7544642857142857 [2022-11-16 11:27:03,590 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 507 transitions. [2022-11-16 11:27:03,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 507 transitions. [2022-11-16 11:27:03,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:03,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 507 transitions. [2022-11-16 11:27:03,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 72.42857142857143) internal successors, (507), 7 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:03,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 96.0) internal successors, (768), 8 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:03,596 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 96.0) internal successors, (768), 8 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:03,596 INFO L175 Difference]: Start difference. First operand has 101 places, 81 transitions, 194 flow. Second operand 7 states and 507 transitions. [2022-11-16 11:27:03,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 94 transitions, 303 flow [2022-11-16 11:27:03,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 94 transitions, 273 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-11-16 11:27:03,601 INFO L231 Difference]: Finished difference. Result has 93 places, 84 transitions, 205 flow [2022-11-16 11:27:03,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=205, PETRI_PLACES=93, PETRI_TRANSITIONS=84} [2022-11-16 11:27:03,602 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 3 predicate places. [2022-11-16 11:27:03,602 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 84 transitions, 205 flow [2022-11-16 11:27:03,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:03,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:03,604 INFO L209 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] [2022-11-16 11:27:03,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:27:03,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:27:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:03,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1791851300, now seen corresponding path program 3 times [2022-11-16 11:27:03,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:03,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883435597] [2022-11-16 11:27:03,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:03,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:04,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:04,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883435597] [2022-11-16 11:27:04,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883435597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:04,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:04,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:27:04,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101970475] [2022-11-16 11:27:04,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:04,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:27:04,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:04,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:27:04,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:27:04,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 96 [2022-11-16 11:27:04,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 84 transitions, 205 flow. Second operand has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:04,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 96 [2022-11-16 11:27:04,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:04,525 INFO L130 PetriNetUnfolder]: 16/165 cut-off events. [2022-11-16 11:27:04,525 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-11-16 11:27:04,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 165 events. 16/165 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 353 event pairs, 6 based on Foata normal form. 2/165 useless extension candidates. Maximal degree in co-relation 150. Up to 26 conditions per place. [2022-11-16 11:27:04,527 INFO L137 encePairwiseOnDemand]: 83/96 looper letters, 20 selfloop transitions, 8 changer transitions 18/102 dead transitions. [2022-11-16 11:27:04,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 102 transitions, 361 flow [2022-11-16 11:27:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:27:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 11:27:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 635 transitions. [2022-11-16 11:27:04,531 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7349537037037037 [2022-11-16 11:27:04,531 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 635 transitions. [2022-11-16 11:27:04,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 635 transitions. [2022-11-16 11:27:04,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:04,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 635 transitions. [2022-11-16 11:27:04,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 70.55555555555556) internal successors, (635), 9 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 96.0) internal successors, (960), 10 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,538 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 96.0) internal successors, (960), 10 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,538 INFO L175 Difference]: Start difference. First operand has 93 places, 84 transitions, 205 flow. Second operand 9 states and 635 transitions. [2022-11-16 11:27:04,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 102 transitions, 361 flow [2022-11-16 11:27:04,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 102 transitions, 348 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-16 11:27:04,543 INFO L231 Difference]: Finished difference. Result has 101 places, 83 transitions, 225 flow [2022-11-16 11:27:04,543 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=225, PETRI_PLACES=101, PETRI_TRANSITIONS=83} [2022-11-16 11:27:04,544 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, 11 predicate places. [2022-11-16 11:27:04,545 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 83 transitions, 225 flow [2022-11-16 11:27:04,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 69.125) internal successors, (553), 8 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:27:04,546 INFO L209 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] [2022-11-16 11:27:04,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:27:04,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-16 11:27:04,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:27:04,548 INFO L85 PathProgramCache]: Analyzing trace with hash 447089700, now seen corresponding path program 4 times [2022-11-16 11:27:04,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:27:04,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479873784] [2022-11-16 11:27:04,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:27:04,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:27:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:27:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:27:04,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:27:04,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479873784] [2022-11-16 11:27:04,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479873784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:27:04,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:27:04,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:27:04,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282610221] [2022-11-16 11:27:04,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:27:04,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:27:04,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:27:04,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:27:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:27:04,793 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 96 [2022-11-16 11:27:04,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 83 transitions, 225 flow. Second operand has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:27:04,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 96 [2022-11-16 11:27:04,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:27:04,885 INFO L130 PetriNetUnfolder]: 1/61 cut-off events. [2022-11-16 11:27:04,885 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 11:27:04,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 61 events. 1/61 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 2/63 useless extension candidates. Maximal degree in co-relation 95. Up to 7 conditions per place. [2022-11-16 11:27:04,886 INFO L137 encePairwiseOnDemand]: 90/96 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2022-11-16 11:27:04,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 60 transitions, 183 flow [2022-11-16 11:27:04,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:27:04,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:27:04,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 486 transitions. [2022-11-16 11:27:04,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7232142857142857 [2022-11-16 11:27:04,889 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 486 transitions. [2022-11-16 11:27:04,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 486 transitions. [2022-11-16 11:27:04,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:27:04,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 486 transitions. [2022-11-16 11:27:04,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.42857142857143) internal successors, (486), 7 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 96.0) internal successors, (768), 8 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,907 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 96.0) internal successors, (768), 8 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,908 INFO L175 Difference]: Start difference. First operand has 101 places, 83 transitions, 225 flow. Second operand 7 states and 486 transitions. [2022-11-16 11:27:04,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 60 transitions, 183 flow [2022-11-16 11:27:04,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 60 transitions, 160 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-16 11:27:04,910 INFO L231 Difference]: Finished difference. Result has 73 places, 0 transitions, 0 flow [2022-11-16 11:27:04,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=73, PETRI_TRANSITIONS=0} [2022-11-16 11:27:04,912 INFO L288 CegarLoopForPetriNet]: 90 programPoint places, -17 predicate places. [2022-11-16 11:27:04,915 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 0 transitions, 0 flow [2022-11-16 11:27:04,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.42857142857143) internal successors, (493), 7 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:27:04,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-16 11:27:04,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-11-16 11:27:04,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-16 11:27:04,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:27:04,922 INFO L444 BasicCegarLoop]: Path program histogram: [4] [2022-11-16 11:27:04,928 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:27:04,928 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:27:04,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:27:04 BasicIcfg [2022-11-16 11:27:04,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:27:04,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:27:04,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:27:04,938 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:27:04,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:27:00" (3/4) ... [2022-11-16 11:27:04,942 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:27:04,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 11:27:04,949 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 11:27:04,956 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-16 11:27:04,957 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:27:04,957 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:27:04,957 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:27:04,996 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:27:04,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:27:04,997 INFO L158 Benchmark]: Toolchain (without parser) took 5677.11ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 108.5MB in the beginning and 109.0MB in the end (delta: -466.3kB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2022-11-16 11:27:04,998 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 91.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:27:04,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.13ms. Allocated memory is still 138.4MB. Free memory was 108.2MB in the beginning and 113.3MB in the end (delta: -5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:27:04,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.65ms. Allocated memory is still 138.4MB. Free memory was 113.3MB in the beginning and 111.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:27:04,999 INFO L158 Benchmark]: Boogie Preprocessor took 27.51ms. Allocated memory is still 138.4MB. Free memory was 111.7MB in the beginning and 110.4MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:27:05,000 INFO L158 Benchmark]: RCFGBuilder took 630.43ms. Allocated memory is still 138.4MB. Free memory was 110.0MB in the beginning and 93.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-16 11:27:05,000 INFO L158 Benchmark]: TraceAbstraction took 4488.43ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 92.9MB in the beginning and 112.1MB in the end (delta: -19.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-11-16 11:27:05,001 INFO L158 Benchmark]: Witness Printer took 58.70ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 109.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:27:05,006 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory was 53.4MB in the beginning and 53.3MB in the end (delta: 91.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.13ms. Allocated memory is still 138.4MB. Free memory was 108.2MB in the beginning and 113.3MB in the end (delta: -5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.65ms. Allocated memory is still 138.4MB. Free memory was 113.3MB in the beginning and 111.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.51ms. Allocated memory is still 138.4MB. Free memory was 111.7MB in the beginning and 110.4MB in the end (delta: 1.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 630.43ms. Allocated memory is still 138.4MB. Free memory was 110.0MB in the beginning and 93.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4488.43ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 92.9MB in the beginning and 112.1MB in the end (delta: -19.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 58.70ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 109.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 102]: 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, 112 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 45 mSDtfsCounter, 343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 2.0s InterpolantComputationTime, 324 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 320 ConstructedInterpolants, 0 QuantifiedInterpolants, 1080 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:27:05,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92f56e53-0de0-4ba8-a624-0550bb5a0780/bin/uautomizer-tPACEb0tL8/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