./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro --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 e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 --- 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-8393723 [2022-11-18 20:10:03,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:10:03,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:10:03,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:10:03,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:10:03,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:10:03,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:10:03,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:10:03,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:10:03,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:10:03,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:10:03,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:10:03,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:10:03,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:10:03,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:10:03,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:10:03,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:10:03,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:10:03,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:10:03,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:10:03,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:10:03,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:10:03,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:10:03,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:10:03,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:10:03,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:10:03,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:10:03,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:10:03,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:10:03,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:10:03,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:10:03,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:10:03,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:10:03,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:10:03,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:10:03,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:10:03,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:10:03,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:10:03,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:10:03,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:10:03,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:10:03,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:10:03,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:10:03,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:10:03,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:10:03,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:10:03,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:10:03,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:10:03,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:10:03,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:10:03,858 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:10:03,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:10:03,859 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:10:03,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:10:03,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:10:03,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:10:03,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:10:03,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:10:03,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:10:03,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:10:03,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:10:03,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:10:03,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:10:03,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:10:03,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:10:03,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:10:03,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:10:03,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:10:03,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:10:03,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:10:03,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:10:03,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:10:03,863 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:10:03,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:10:03,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:10:03,864 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_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 [2022-11-18 20:10:04,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:10:04,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:10:04,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:10:04,162 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:10:04,163 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:10:04,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-11-18 20:10:04,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/data/2dc8f4a73/94ee733c5b5f4334862beadb40320373/FLAG852259802 [2022-11-18 20:10:04,810 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:10:04,811 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2022-11-18 20:10:04,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/data/2dc8f4a73/94ee733c5b5f4334862beadb40320373/FLAG852259802 [2022-11-18 20:10:05,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/data/2dc8f4a73/94ee733c5b5f4334862beadb40320373 [2022-11-18 20:10:05,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:10:05,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:10:05,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:10:05,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:10:05,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:10:05,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b77ee6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05, skipping insertion in model container [2022-11-18 20:10:05,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:10:05,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:10:05,436 WARN L234 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_f8178368-cfdc-48e6-8583-c91b13022704/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-11-18 20:10:05,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:10:05,453 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:10:05,481 WARN L234 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_f8178368-cfdc-48e6-8583-c91b13022704/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2022-11-18 20:10:05,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:10:05,500 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:10:05,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05 WrapperNode [2022-11-18 20:10:05,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:10:05,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:10:05,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:10:05,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:10:05,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,591 INFO L138 Inliner]: procedures = 23, calls = 46, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 353 [2022-11-18 20:10:05,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:10:05,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:10:05,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:10:05,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:10:05,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,623 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:10:05,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:10:05,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:10:05,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:10:05,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (1/1) ... [2022-11-18 20:10:05,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:10:05,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:10:05,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:10:05,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:10:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:10:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:10:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:10:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:10:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:10:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:10:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:10:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:10:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:10:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:10:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 20:10:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 20:10:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:10:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:10:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:10:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:10:05,776 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:10:05,921 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:10:05,923 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:10:06,716 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:10:07,437 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:10:07,437 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:10:07,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:10:07 BoogieIcfgContainer [2022-11-18 20:10:07,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:10:07,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:10:07,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:10:07,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:10:07,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:10:05" (1/3) ... [2022-11-18 20:10:07,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fb60d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:10:07, skipping insertion in model container [2022-11-18 20:10:07,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:10:05" (2/3) ... [2022-11-18 20:10:07,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fb60d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:10:07, skipping insertion in model container [2022-11-18 20:10:07,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:10:07" (3/3) ... [2022-11-18 20:10:07,458 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2022-11-18 20:10:07,467 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:10:07,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:10:07,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:10:07,480 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:10:07,662 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:10:07,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 133 transitions, 290 flow [2022-11-18 20:10:07,829 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2022-11-18 20:10:07,830 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:10:07,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2022-11-18 20:10:07,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 133 transitions, 290 flow [2022-11-18 20:10:07,841 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 119 transitions, 256 flow [2022-11-18 20:10:07,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:10:07,874 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;@3e9fa6cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:10:07,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 20:10:07,939 INFO L130 PetriNetUnfolder]: 2/118 cut-off events. [2022-11-18 20:10:07,940 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:10:07,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:07,941 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:07,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 20:10:07,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:07,948 INFO L85 PathProgramCache]: Analyzing trace with hash -64327517, now seen corresponding path program 1 times [2022-11-18 20:10:07,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:07,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206767570] [2022-11-18 20:10:07,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:07,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:30,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:30,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206767570] [2022-11-18 20:10:30,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206767570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:30,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:30,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:10:30,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633651111] [2022-11-18 20:10:30,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:30,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:10:30,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:30,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:10:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:10:30,229 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 133 [2022-11-18 20:10:30,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 119 transitions, 256 flow. Second operand has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:10:30,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:30,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 133 [2022-11-18 20:10:30,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:33,063 INFO L130 PetriNetUnfolder]: 14/222 cut-off events. [2022-11-18 20:10:33,063 INFO L131 PetriNetUnfolder]: For 55/61 co-relation queries the response was YES. [2022-11-18 20:10:33,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 222 events. 14/222 cut-off events. For 55/61 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 473 event pairs, 7 based on Foata normal form. 7/218 useless extension candidates. Maximal degree in co-relation 136. Up to 48 conditions per place. [2022-11-18 20:10:33,067 INFO L137 encePairwiseOnDemand]: 120/133 looper letters, 57 selfloop transitions, 2 changer transitions 17/147 dead transitions. [2022-11-18 20:10:33,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 147 transitions, 488 flow [2022-11-18 20:10:33,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 20:10:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 20:10:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1175 transitions. [2022-11-18 20:10:33,085 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6795835743204164 [2022-11-18 20:10:33,086 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1175 transitions. [2022-11-18 20:10:33,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1175 transitions. [2022-11-18 20:10:33,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:33,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1175 transitions. [2022-11-18 20:10:33,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.38461538461539) internal successors, (1175), 13 states have internal predecessors, (1175), 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) [2022-11-18 20:10:33,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 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) [2022-11-18 20:10:33,113 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 133.0) internal successors, (1862), 14 states have internal predecessors, (1862), 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) [2022-11-18 20:10:33,120 INFO L175 Difference]: Start difference. First operand has 127 places, 119 transitions, 256 flow. Second operand 13 states and 1175 transitions. [2022-11-18 20:10:33,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 147 transitions, 488 flow [2022-11-18 20:10:33,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 147 transitions, 460 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:10:33,131 INFO L231 Difference]: Finished difference. Result has 141 places, 116 transitions, 261 flow [2022-11-18 20:10:33,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=261, PETRI_PLACES=141, PETRI_TRANSITIONS=116} [2022-11-18 20:10:33,137 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, 14 predicate places. [2022-11-18 20:10:33,137 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 116 transitions, 261 flow [2022-11-18 20:10:33,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:10:33,138 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:33,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:33,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:10:33,139 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 20:10:33,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:33,140 INFO L85 PathProgramCache]: Analyzing trace with hash 477079079, now seen corresponding path program 2 times [2022-11-18 20:10:33,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:33,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606171363] [2022-11-18 20:10:33,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:33,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:39,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:39,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:39,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606171363] [2022-11-18 20:10:39,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606171363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:39,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:39,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:10:39,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38890799] [2022-11-18 20:10:39,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:39,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:10:39,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:39,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:10:39,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:10:39,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 133 [2022-11-18 20:10:39,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 116 transitions, 261 flow. Second operand has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:10:39,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:39,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 133 [2022-11-18 20:10:39,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:40,981 INFO L130 PetriNetUnfolder]: 13/251 cut-off events. [2022-11-18 20:10:40,982 INFO L131 PetriNetUnfolder]: For 64/72 co-relation queries the response was YES. [2022-11-18 20:10:40,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 251 events. 13/251 cut-off events. For 64/72 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 718 event pairs, 5 based on Foata normal form. 2/247 useless extension candidates. Maximal degree in co-relation 404. Up to 42 conditions per place. [2022-11-18 20:10:40,984 INFO L137 encePairwiseOnDemand]: 124/133 looper letters, 57 selfloop transitions, 3 changer transitions 12/143 dead transitions. [2022-11-18 20:10:40,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 143 transitions, 498 flow [2022-11-18 20:10:40,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:10:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:10:40,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 912 transitions. [2022-11-18 20:10:40,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2022-11-18 20:10:40,992 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 912 transitions. [2022-11-18 20:10:40,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 912 transitions. [2022-11-18 20:10:40,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:40,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 912 transitions. [2022-11-18 20:10:40,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.2) internal successors, (912), 10 states have internal predecessors, (912), 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) [2022-11-18 20:10:41,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:10:41,006 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:10:41,006 INFO L175 Difference]: Start difference. First operand has 141 places, 116 transitions, 261 flow. Second operand 10 states and 912 transitions. [2022-11-18 20:10:41,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 143 transitions, 498 flow [2022-11-18 20:10:41,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 143 transitions, 461 flow, removed 17 selfloop flow, removed 7 redundant places. [2022-11-18 20:10:41,016 INFO L231 Difference]: Finished difference. Result has 140 places, 117 transitions, 278 flow [2022-11-18 20:10:41,017 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=278, PETRI_PLACES=140, PETRI_TRANSITIONS=117} [2022-11-18 20:10:41,017 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, 13 predicate places. [2022-11-18 20:10:41,018 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 117 transitions, 278 flow [2022-11-18 20:10:41,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:10:41,019 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:41,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:41,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:10:41,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 20:10:41,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash 450472771, now seen corresponding path program 3 times [2022-11-18 20:10:41,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:41,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416661225] [2022-11-18 20:10:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:41,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:47,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:47,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:47,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416661225] [2022-11-18 20:10:47,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416661225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:47,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:47,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:10:47,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677603968] [2022-11-18 20:10:47,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:47,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:10:47,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:47,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:10:47,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:10:47,861 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 133 [2022-11-18 20:10:47,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 117 transitions, 278 flow. Second operand has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:10:47,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:47,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 133 [2022-11-18 20:10:47,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:49,573 INFO L130 PetriNetUnfolder]: 11/228 cut-off events. [2022-11-18 20:10:49,573 INFO L131 PetriNetUnfolder]: For 96/99 co-relation queries the response was YES. [2022-11-18 20:10:49,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 228 events. 11/228 cut-off events. For 96/99 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 546 event pairs, 3 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 390. Up to 43 conditions per place. [2022-11-18 20:10:49,575 INFO L137 encePairwiseOnDemand]: 124/133 looper letters, 57 selfloop transitions, 3 changer transitions 14/145 dead transitions. [2022-11-18 20:10:49,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 145 transitions, 533 flow [2022-11-18 20:10:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:10:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:10:49,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 912 transitions. [2022-11-18 20:10:49,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2022-11-18 20:10:49,586 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 912 transitions. [2022-11-18 20:10:49,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 912 transitions. [2022-11-18 20:10:49,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:49,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 912 transitions. [2022-11-18 20:10:49,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 91.2) internal successors, (912), 10 states have internal predecessors, (912), 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) [2022-11-18 20:10:49,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:10:49,595 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:10:49,595 INFO L175 Difference]: Start difference. First operand has 140 places, 117 transitions, 278 flow. Second operand 10 states and 912 transitions. [2022-11-18 20:10:49,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 145 transitions, 533 flow [2022-11-18 20:10:49,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 145 transitions, 493 flow, removed 18 selfloop flow, removed 7 redundant places. [2022-11-18 20:10:49,602 INFO L231 Difference]: Finished difference. Result has 144 places, 117 transitions, 288 flow [2022-11-18 20:10:49,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=288, PETRI_PLACES=144, PETRI_TRANSITIONS=117} [2022-11-18 20:10:49,603 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, 17 predicate places. [2022-11-18 20:10:49,603 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 117 transitions, 288 flow [2022-11-18 20:10:49,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:10:49,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:49,604 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:49,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:10:49,605 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 20:10:49,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash 763523587, now seen corresponding path program 4 times [2022-11-18 20:10:49,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:49,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096615577] [2022-11-18 20:10:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:49,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:10:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:10:54,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:10:54,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096615577] [2022-11-18 20:10:54,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096615577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:10:54,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:10:54,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:10:54,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004147208] [2022-11-18 20:10:54,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:10:54,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:10:54,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:10:54,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:10:54,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:10:54,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 133 [2022-11-18 20:10:54,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 117 transitions, 288 flow. Second operand has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:10:54,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:10:54,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 133 [2022-11-18 20:10:54,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:10:56,116 INFO L130 PetriNetUnfolder]: 8/184 cut-off events. [2022-11-18 20:10:56,116 INFO L131 PetriNetUnfolder]: For 128/128 co-relation queries the response was YES. [2022-11-18 20:10:56,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 184 events. 8/184 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 295 event pairs, 4 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 324. Up to 37 conditions per place. [2022-11-18 20:10:56,119 INFO L137 encePairwiseOnDemand]: 124/133 looper letters, 43 selfloop transitions, 1 changer transitions 17/132 dead transitions. [2022-11-18 20:10:56,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 132 transitions, 471 flow [2022-11-18 20:10:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:10:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:10:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 901 transitions. [2022-11-18 20:10:56,123 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6774436090225564 [2022-11-18 20:10:56,123 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 901 transitions. [2022-11-18 20:10:56,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 901 transitions. [2022-11-18 20:10:56,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:10:56,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 901 transitions. [2022-11-18 20:10:56,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 90.1) internal successors, (901), 10 states have internal predecessors, (901), 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) [2022-11-18 20:10:56,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:10:56,135 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:10:56,136 INFO L175 Difference]: Start difference. First operand has 144 places, 117 transitions, 288 flow. Second operand 10 states and 901 transitions. [2022-11-18 20:10:56,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 132 transitions, 471 flow [2022-11-18 20:10:56,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 132 transitions, 436 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-18 20:10:56,146 INFO L231 Difference]: Finished difference. Result has 145 places, 115 transitions, 269 flow [2022-11-18 20:10:56,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=269, PETRI_PLACES=145, PETRI_TRANSITIONS=115} [2022-11-18 20:10:56,156 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, 18 predicate places. [2022-11-18 20:10:56,156 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 115 transitions, 269 flow [2022-11-18 20:10:56,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:10:56,157 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:10:56,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:10:56,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:10:56,158 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 20:10:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:10:56,159 INFO L85 PathProgramCache]: Analyzing trace with hash -5512699, now seen corresponding path program 5 times [2022-11-18 20:10:56,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:10:56,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469807088] [2022-11-18 20:10:56,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:10:56,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:10:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:00,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:00,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469807088] [2022-11-18 20:11:00,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469807088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:00,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:00,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:11:00,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432391957] [2022-11-18 20:11:00,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:00,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:11:00,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:00,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:11:00,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:11:00,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 133 [2022-11-18 20:11:00,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 115 transitions, 269 flow. Second operand has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:11:00,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:11:00,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 133 [2022-11-18 20:11:00,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:11:02,111 INFO L130 PetriNetUnfolder]: 1/146 cut-off events. [2022-11-18 20:11:02,111 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2022-11-18 20:11:02,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 146 events. 1/146 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 117 event pairs, 0 based on Foata normal form. 1/147 useless extension candidates. Maximal degree in co-relation 239. Up to 32 conditions per place. [2022-11-18 20:11:02,112 INFO L137 encePairwiseOnDemand]: 124/133 looper letters, 43 selfloop transitions, 1 changer transitions 13/128 dead transitions. [2022-11-18 20:11:02,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 128 transitions, 440 flow [2022-11-18 20:11:02,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:11:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:11:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 898 transitions. [2022-11-18 20:11:02,115 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.675187969924812 [2022-11-18 20:11:02,115 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 898 transitions. [2022-11-18 20:11:02,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 898 transitions. [2022-11-18 20:11:02,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:11:02,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 898 transitions. [2022-11-18 20:11:02,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.8) internal successors, (898), 10 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:11:02,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:11:02,138 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:11:02,138 INFO L175 Difference]: Start difference. First operand has 145 places, 115 transitions, 269 flow. Second operand 10 states and 898 transitions. [2022-11-18 20:11:02,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 128 transitions, 440 flow [2022-11-18 20:11:02,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 128 transitions, 392 flow, removed 16 selfloop flow, removed 13 redundant places. [2022-11-18 20:11:02,145 INFO L231 Difference]: Finished difference. Result has 141 places, 115 transitions, 261 flow [2022-11-18 20:11:02,145 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=261, PETRI_PLACES=141, PETRI_TRANSITIONS=115} [2022-11-18 20:11:02,149 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, 14 predicate places. [2022-11-18 20:11:02,150 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 115 transitions, 261 flow [2022-11-18 20:11:02,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:11:02,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:11:02,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:11:02,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:11:02,151 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-18 20:11:02,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:11:02,155 INFO L85 PathProgramCache]: Analyzing trace with hash 231083089, now seen corresponding path program 6 times [2022-11-18 20:11:02,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:11:02,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118247966] [2022-11-18 20:11:02,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:11:02,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:11:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:11:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:11:07,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:11:07,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118247966] [2022-11-18 20:11:07,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118247966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:11:07,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:11:07,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:11:07,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026621705] [2022-11-18 20:11:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:11:07,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:11:07,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:11:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:11:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:11:07,280 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 133 [2022-11-18 20:11:07,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 115 transitions, 261 flow. Second operand has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:11:07,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:11:07,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 133 [2022-11-18 20:11:07,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:11:08,554 INFO L130 PetriNetUnfolder]: 1/119 cut-off events. [2022-11-18 20:11:08,554 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-18 20:11:08,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 119 events. 1/119 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 1 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 186. Up to 34 conditions per place. [2022-11-18 20:11:08,555 INFO L137 encePairwiseOnDemand]: 124/133 looper letters, 0 selfloop transitions, 0 changer transitions 113/113 dead transitions. [2022-11-18 20:11:08,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 113 transitions, 347 flow [2022-11-18 20:11:08,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:11:08,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 20:11:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 885 transitions. [2022-11-18 20:11:08,557 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6654135338345865 [2022-11-18 20:11:08,557 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 885 transitions. [2022-11-18 20:11:08,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 885 transitions. [2022-11-18 20:11:08,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:11:08,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 885 transitions. [2022-11-18 20:11:08,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.5) internal successors, (885), 10 states have internal predecessors, (885), 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) [2022-11-18 20:11:08,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:11:08,564 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 133.0) internal successors, (1463), 11 states have internal predecessors, (1463), 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) [2022-11-18 20:11:08,564 INFO L175 Difference]: Start difference. First operand has 141 places, 115 transitions, 261 flow. Second operand 10 states and 885 transitions. [2022-11-18 20:11:08,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 113 transitions, 347 flow [2022-11-18 20:11:08,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 113 transitions, 333 flow, removed 6 selfloop flow, removed 7 redundant places. [2022-11-18 20:11:08,566 INFO L231 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2022-11-18 20:11:08,567 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=133, PETRI_TRANSITIONS=0} [2022-11-18 20:11:08,567 INFO L288 CegarLoopForPetriNet]: 127 programPoint places, 6 predicate places. [2022-11-18 20:11:08,567 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2022-11-18 20:11:08,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 88.4) internal successors, (884), 10 states have internal predecessors, (884), 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) [2022-11-18 20:11:08,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-18 20:11:08,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-18 20:11:08,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-18 20:11:08,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-18 20:11:08,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:11:08,572 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2022-11-18 20:11:08,576 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:11:08,576 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:11:08,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:11:08 BasicIcfg [2022-11-18 20:11:08,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:11:08,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:11:08,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:11:08,583 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:11:08,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:10:07" (3/4) ... [2022-11-18 20:11:08,586 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:11:08,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 20:11:08,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 20:11:08,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-18 20:11:08,598 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-18 20:11:08,598 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:11:08,598 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:11:08,599 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:11:08,644 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:11:08,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:11:08,645 INFO L158 Benchmark]: Toolchain (without parser) took 63488.84ms. Allocated memory was 155.2MB in the beginning and 1.1GB in the end (delta: 977.3MB). Free memory was 124.2MB in the beginning and 498.2MB in the end (delta: -373.9MB). Peak memory consumption was 603.7MB. Max. memory is 16.1GB. [2022-11-18 20:11:08,649 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:11:08,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.36ms. Allocated memory is still 155.2MB. Free memory was 124.2MB in the beginning and 129.7MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:11:08,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.17ms. Allocated memory is still 155.2MB. Free memory was 129.7MB in the beginning and 126.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:11:08,651 INFO L158 Benchmark]: Boogie Preprocessor took 39.47ms. Allocated memory is still 155.2MB. Free memory was 126.9MB in the beginning and 124.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:11:08,651 INFO L158 Benchmark]: RCFGBuilder took 1808.42ms. Allocated memory is still 155.2MB. Free memory was 124.7MB in the beginning and 81.9MB in the end (delta: 42.8MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-11-18 20:11:08,652 INFO L158 Benchmark]: TraceAbstraction took 61137.28ms. Allocated memory was 155.2MB in the beginning and 1.1GB in the end (delta: 977.3MB). Free memory was 81.9MB in the beginning and 501.3MB in the end (delta: -419.4MB). Peak memory consumption was 556.7MB. Max. memory is 16.1GB. [2022-11-18 20:11:08,652 INFO L158 Benchmark]: Witness Printer took 62.23ms. Allocated memory is still 1.1GB. Free memory was 501.3MB in the beginning and 498.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:11:08,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 92.3MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.36ms. Allocated memory is still 155.2MB. Free memory was 124.2MB in the beginning and 129.7MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.17ms. Allocated memory is still 155.2MB. Free memory was 129.7MB in the beginning and 126.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.47ms. Allocated memory is still 155.2MB. Free memory was 126.9MB in the beginning and 124.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1808.42ms. Allocated memory is still 155.2MB. Free memory was 124.7MB in the beginning and 81.9MB in the end (delta: 42.8MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. * TraceAbstraction took 61137.28ms. Allocated memory was 155.2MB in the beginning and 1.1GB in the end (delta: 977.3MB). Free memory was 81.9MB in the beginning and 501.3MB in the end (delta: -419.4MB). Peak memory consumption was 556.7MB. Max. memory is 16.1GB. * Witness Printer took 62.23ms. Allocated memory is still 1.1GB. Free memory was 501.3MB in the beginning and 498.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: 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 7 procedures, 147 locations, 4 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: 60.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 273 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 273 mSDsluCounter, 1143 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 923 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1115 IncrementalHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 220 mSDtfsCounter, 1115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=3, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 47.4s InterpolantComputationTime, 690 NumberOfCodeBlocks, 690 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 684 ConstructedInterpolants, 0 QuantifiedInterpolants, 10809 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2022-11-18 20:11:08,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8178368-cfdc-48e6-8583-c91b13022704/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE