./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/main1_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/main1_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3 --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 64bit --witnessprinter.graph.data.programhash a768a1484ae4a6ca5fc4919dfbacbc5e9e2dd079 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:46:34,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:46:34,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:46:34,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:46:34,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:46:34,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:46:34,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:46:34,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:46:34,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:46:34,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:46:34,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:46:34,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:46:34,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:46:34,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:46:34,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:46:34,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:46:34,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:46:34,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:46:34,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:46:34,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:46:34,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:46:34,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:46:34,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:46:34,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:46:34,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:46:34,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:46:34,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:46:34,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:46:34,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:46:34,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:46:34,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:46:34,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:46:34,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:46:34,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:46:34,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:46:34,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:46:34,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:46:34,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:46:34,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:46:34,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:46:34,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:46:34,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-10-15 19:46:35,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:46:35,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:46:35,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:46:35,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:46:35,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:46:35,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:46:35,005 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:46:35,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:46:35,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:46:35,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:46:35,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:46:35,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:46:35,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:46:35,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:46:35,008 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:46:35,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:46:35,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:46:35,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:46:35,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:46:35,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:46:35,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:46:35,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:46:35,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:46:35,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:46:35,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:46:35,011 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:46:35,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:46:35,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:46:35,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:46:35,014 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_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a768a1484ae4a6ca5fc4919dfbacbc5e9e2dd079 [2021-10-15 19:46:35,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:46:35,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:46:35,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:46:35,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:46:35,331 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:46:35,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/ldv-commit-tester/main1_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2021-10-15 19:46:35,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/data/1f5df00f9/a6b31afcc1d143f08e0bf987510055de/FLAGb4286e84d [2021-10-15 19:46:36,520 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:46:36,522 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/sv-benchmarks/c/ldv-commit-tester/main1_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2021-10-15 19:46:36,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/data/1f5df00f9/a6b31afcc1d143f08e0bf987510055de/FLAGb4286e84d [2021-10-15 19:46:36,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/data/1f5df00f9/a6b31afcc1d143f08e0bf987510055de [2021-10-15 19:46:36,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:46:36,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:46:36,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:46:36,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:46:36,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:46:36,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:46:36" (1/1) ... [2021-10-15 19:46:36,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170c6590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:36, skipping insertion in model container [2021-10-15 19:46:36,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:46:36" (1/1) ... [2021-10-15 19:46:36,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:46:37,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:46:40,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/sv-benchmarks/c/ldv-commit-tester/main1_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i[341124,341137] [2021-10-15 19:46:40,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:46:41,043 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:46:41,935 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/sv-benchmarks/c/ldv-commit-tester/main1_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i[341124,341137] [2021-10-15 19:46:41,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:46:42,363 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:46:42,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42 WrapperNode [2021-10-15 19:46:42,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:46:42,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:46:42,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:46:42,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:46:42,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:46:42,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:46:42,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:46:42,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:46:42,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:46:42,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:46:42,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:46:42,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:46:42,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (1/1) ... [2021-10-15 19:46:42,984 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:46:42,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:46:43,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:46:43,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:46:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-10-15 19:46:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:46:43,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:46:43,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-15 19:46:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:46:43,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:46:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:46:43,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-15 19:46:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-15 19:46:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:46:43,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:50:46,594 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:50:46,595 INFO L299 CfgBuilder]: Removed 120 assume(true) statements. [2021-10-15 19:50:46,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:50:46 BoogieIcfgContainer [2021-10-15 19:50:46,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:50:46,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:50:46,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:50:46,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:50:46,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:46:36" (1/3) ... [2021-10-15 19:50:46,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587873de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:50:46, skipping insertion in model container [2021-10-15 19:50:46,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:46:42" (2/3) ... [2021-10-15 19:50:46,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587873de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:50:46, skipping insertion in model container [2021-10-15 19:50:46,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:50:46" (3/3) ... [2021-10-15 19:50:46,608 INFO L111 eAbstractionObserver]: Analyzing ICFG main1_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa-1.i [2021-10-15 19:50:46,614 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:50:46,615 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-15 19:50:46,669 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:50:46,677 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 19:50:46,677 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-15 19:50:46,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 130 places, 178 transitions, 356 flow [2021-10-15 19:50:46,752 INFO L129 PetriNetUnfolder]: 49/178 cut-off events. [2021-10-15 19:50:46,753 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:50:46,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 178 events. 49/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 557 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2021-10-15 19:50:46,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 130 places, 178 transitions, 356 flow [2021-10-15 19:50:46,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 173 transitions, 346 flow [2021-10-15 19:50:46,766 INFO L129 PetriNetUnfolder]: 1/9 cut-off events. [2021-10-15 19:50:46,766 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:50:46,767 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:46,767 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:50:46,768 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-15 19:50:46,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:46,775 INFO L82 PathProgramCache]: Analyzing trace with hash 900314986, now seen corresponding path program 1 times [2021-10-15 19:50:46,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:46,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735197755] [2021-10-15 19:50:46,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:46,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:48,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:48,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735197755] [2021-10-15 19:50:48,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735197755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:48,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:48,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:50:48,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755465426] [2021-10-15 19:50:48,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:50:48,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:48,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:50:48,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:50:48,110 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 178 [2021-10-15 19:50:48,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 173 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:48,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:48,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 178 [2021-10-15 19:50:48,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:50,402 INFO L129 PetriNetUnfolder]: 40/163 cut-off events. [2021-10-15 19:50:50,402 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:50:50,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 163 events. 40/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 484 event pairs, 0 based on Foata normal form. 7/127 useless extension candidates. Maximal degree in co-relation 149. Up to 13 conditions per place. [2021-10-15 19:50:50,407 INFO L132 encePairwiseOnDemand]: 169/178 looper letters, 2 selfloop transitions, 1 changer transitions 0/163 dead transitions. [2021-10-15 19:50:50,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 163 transitions, 332 flow [2021-10-15 19:50:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:50:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:50:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 506 transitions. [2021-10-15 19:50:50,428 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.947565543071161 [2021-10-15 19:50:50,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 506 transitions. [2021-10-15 19:50:50,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 506 transitions. [2021-10-15 19:50:50,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:50,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 506 transitions. [2021-10-15 19:50:50,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:50,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:50,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:50,456 INFO L186 Difference]: Start difference. First operand has 126 places, 173 transitions, 346 flow. Second operand 3 states and 506 transitions. [2021-10-15 19:50:50,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 163 transitions, 332 flow [2021-10-15 19:50:50,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 163 transitions, 332 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:50:50,467 INFO L242 Difference]: Finished difference. Result has 126 places, 163 transitions, 328 flow [2021-10-15 19:50:50,470 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=126, PETRI_TRANSITIONS=163} [2021-10-15 19:50:50,471 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, 0 predicate places. [2021-10-15 19:50:50,471 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 163 transitions, 328 flow [2021-10-15 19:50:50,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:50,472 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:50,472 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:50,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:50:50,473 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-15 19:50:50,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:50,474 INFO L82 PathProgramCache]: Analyzing trace with hash 2139959495, now seen corresponding path program 1 times [2021-10-15 19:50:50,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:50,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335520524] [2021-10-15 19:50:50,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:50,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:51,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:51,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335520524] [2021-10-15 19:50:51,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335520524] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:51,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:51,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:50:51,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200871299] [2021-10-15 19:50:51,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:50:51,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:51,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:50:51,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:50:51,163 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 178 [2021-10-15 19:50:51,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 163 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:51,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:51,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 178 [2021-10-15 19:50:51,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:53,483 INFO L129 PetriNetUnfolder]: 40/161 cut-off events. [2021-10-15 19:50:53,483 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:50:53,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 161 events. 40/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 468 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 160. Up to 13 conditions per place. [2021-10-15 19:50:53,485 INFO L132 encePairwiseOnDemand]: 176/178 looper letters, 2 selfloop transitions, 1 changer transitions 0/161 dead transitions. [2021-10-15 19:50:53,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 161 transitions, 330 flow [2021-10-15 19:50:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:50:53,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:50:53,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2021-10-15 19:50:53,490 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9344569288389513 [2021-10-15 19:50:53,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2021-10-15 19:50:53,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2021-10-15 19:50:53,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:53,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2021-10-15 19:50:53,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:53,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:53,498 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:53,498 INFO L186 Difference]: Start difference. First operand has 126 places, 163 transitions, 328 flow. Second operand 3 states and 499 transitions. [2021-10-15 19:50:53,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 161 transitions, 330 flow [2021-10-15 19:50:53,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 161 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:50:53,506 INFO L242 Difference]: Finished difference. Result has 125 places, 161 transitions, 325 flow [2021-10-15 19:50:53,507 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=125, PETRI_TRANSITIONS=161} [2021-10-15 19:50:53,507 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, -1 predicate places. [2021-10-15 19:50:53,508 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 161 transitions, 325 flow [2021-10-15 19:50:53,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:53,509 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:53,509 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:53,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:50:53,510 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-15 19:50:53,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:53,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1914233620, now seen corresponding path program 1 times [2021-10-15 19:50:53,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:53,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739758891] [2021-10-15 19:50:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:53,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:54,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:54,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739758891] [2021-10-15 19:50:54,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739758891] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:54,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:54,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:50:54,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161061749] [2021-10-15 19:50:54,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:50:54,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:54,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:50:54,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:50:54,068 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 178 [2021-10-15 19:50:54,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 161 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:54,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:54,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 178 [2021-10-15 19:50:54,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:56,398 INFO L129 PetriNetUnfolder]: 40/159 cut-off events. [2021-10-15 19:50:56,399 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:50:56,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 159 events. 40/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 457 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 158. Up to 13 conditions per place. [2021-10-15 19:50:56,401 INFO L132 encePairwiseOnDemand]: 176/178 looper letters, 2 selfloop transitions, 1 changer transitions 0/159 dead transitions. [2021-10-15 19:50:56,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 159 transitions, 327 flow [2021-10-15 19:50:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:50:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:50:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2021-10-15 19:50:56,405 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9344569288389513 [2021-10-15 19:50:56,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2021-10-15 19:50:56,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2021-10-15 19:50:56,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:56,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2021-10-15 19:50:56,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:56,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:56,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:56,413 INFO L186 Difference]: Start difference. First operand has 125 places, 161 transitions, 325 flow. Second operand 3 states and 499 transitions. [2021-10-15 19:50:56,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 159 transitions, 327 flow [2021-10-15 19:50:56,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 159 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:50:56,419 INFO L242 Difference]: Finished difference. Result has 124 places, 159 transitions, 322 flow [2021-10-15 19:50:56,420 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=124, PETRI_TRANSITIONS=159} [2021-10-15 19:50:56,420 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, -2 predicate places. [2021-10-15 19:50:56,421 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 159 transitions, 322 flow [2021-10-15 19:50:56,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:56,422 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:56,422 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:56,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:50:56,423 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-15 19:50:56,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:56,424 INFO L82 PathProgramCache]: Analyzing trace with hash -788301199, now seen corresponding path program 1 times [2021-10-15 19:50:56,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:56,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331134616] [2021-10-15 19:50:56,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:56,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:56,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:56,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331134616] [2021-10-15 19:50:56,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331134616] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:56,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:56,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:50:56,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758302944] [2021-10-15 19:50:56,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:50:56,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:56,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:50:56,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:50:56,939 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 178 [2021-10-15 19:50:56,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 159 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:56,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:56,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 178 [2021-10-15 19:50:56,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:59,212 INFO L129 PetriNetUnfolder]: 40/157 cut-off events. [2021-10-15 19:50:59,212 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:50:59,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 40/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 444 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 156. Up to 13 conditions per place. [2021-10-15 19:50:59,214 INFO L132 encePairwiseOnDemand]: 176/178 looper letters, 2 selfloop transitions, 1 changer transitions 0/157 dead transitions. [2021-10-15 19:50:59,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 157 transitions, 324 flow [2021-10-15 19:50:59,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:50:59,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:50:59,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2021-10-15 19:50:59,218 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9344569288389513 [2021-10-15 19:50:59,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2021-10-15 19:50:59,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2021-10-15 19:50:59,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:59,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2021-10-15 19:50:59,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:59,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:59,224 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:59,225 INFO L186 Difference]: Start difference. First operand has 124 places, 159 transitions, 322 flow. Second operand 3 states and 499 transitions. [2021-10-15 19:50:59,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 157 transitions, 324 flow [2021-10-15 19:50:59,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 157 transitions, 323 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:50:59,231 INFO L242 Difference]: Finished difference. Result has 123 places, 157 transitions, 319 flow [2021-10-15 19:50:59,231 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=123, PETRI_TRANSITIONS=157} [2021-10-15 19:50:59,232 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, -3 predicate places. [2021-10-15 19:50:59,232 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 157 transitions, 319 flow [2021-10-15 19:50:59,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:59,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:59,233 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:59,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-15 19:50:59,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-15 19:50:59,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:59,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1332465342, now seen corresponding path program 1 times [2021-10-15 19:50:59,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:59,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549671263] [2021-10-15 19:50:59,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:59,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:59,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:59,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:59,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549671263] [2021-10-15 19:50:59,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549671263] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:50:59,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:50:59,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:50:59,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249749319] [2021-10-15 19:50:59,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:50:59,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:59,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:50:59,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:50:59,723 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 178 [2021-10-15 19:50:59,724 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 157 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:59,724 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:59,724 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 178 [2021-10-15 19:50:59,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:51:01,890 INFO L129 PetriNetUnfolder]: 40/155 cut-off events. [2021-10-15 19:51:01,890 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:51:01,891 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 155 events. 40/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 429 event pairs, 0 based on Foata normal form. 1/116 useless extension candidates. Maximal degree in co-relation 153. Up to 13 conditions per place. [2021-10-15 19:51:01,892 INFO L132 encePairwiseOnDemand]: 176/178 looper letters, 0 selfloop transitions, 0 changer transitions 155/155 dead transitions. [2021-10-15 19:51:01,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 155 transitions, 319 flow [2021-10-15 19:51:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:51:02,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:51:02,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2021-10-15 19:51:02,007 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9325842696629213 [2021-10-15 19:51:02,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2021-10-15 19:51:02,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2021-10-15 19:51:02,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:51:02,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2021-10-15 19:51:02,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:02,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:02,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:02,014 INFO L186 Difference]: Start difference. First operand has 123 places, 157 transitions, 319 flow. Second operand 3 states and 498 transitions. [2021-10-15 19:51:02,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 155 transitions, 319 flow [2021-10-15 19:51:02,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 155 transitions, 318 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-15 19:51:02,019 INFO L242 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2021-10-15 19:51:02,019 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2021-10-15 19:51:02,020 INFO L334 CegarLoopForPetriNet]: 126 programPoint places, -4 predicate places. [2021-10-15 19:51:02,020 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2021-10-15 19:51:02,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:02,024 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:51:02,025 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:51:02,025 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:51:02,025 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:51:02,026 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:51:02,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-15 19:51:02,032 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:51:02,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:51:02 BoogieIcfgContainer [2021-10-15 19:51:02,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:51:02,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:51:02,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:51:02,040 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:51:02,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:50:46" (3/4) ... [2021-10-15 19:51:02,046 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:51:02,085 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 167 nodes and edges [2021-10-15 19:51:02,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2021-10-15 19:51:02,095 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2021-10-15 19:51:02,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-15 19:51:02,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-15 19:51:02,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 19:51:02,110 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-15 19:51:02,114 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:51:03,135 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:51:03,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:51:03,138 INFO L168 Benchmark]: Toolchain (without parser) took 266324.95 ms. Allocated memory was 83.9 MB in the beginning and 534.8 MB in the end (delta: 450.9 MB). Free memory was 38.9 MB in the beginning and 119.0 MB in the end (delta: -80.1 MB). Peak memory consumption was 399.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:03,138 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 37.4 MB in the beginning and 37.4 MB in the end (delta: 63.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:51:03,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5550.15 ms. Allocated memory was 83.9 MB in the beginning and 213.9 MB in the end (delta: 130.0 MB). Free memory was 38.7 MB in the beginning and 84.8 MB in the end (delta: -46.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:03,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 376.99 ms. Allocated memory is still 213.9 MB. Free memory was 84.8 MB in the beginning and 116.5 MB in the end (delta: -31.7 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:03,140 INFO L168 Benchmark]: Boogie Preprocessor took 226.89 ms. Allocated memory is still 213.9 MB. Free memory was 116.5 MB in the beginning and 99.6 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:03,141 INFO L168 Benchmark]: RCFGBuilder took 243625.35 ms. Allocated memory was 213.9 MB in the beginning and 534.8 MB in the end (delta: 320.9 MB). Free memory was 99.6 MB in the beginning and 328.0 MB in the end (delta: -228.4 MB). Peak memory consumption was 313.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:03,142 INFO L168 Benchmark]: TraceAbstraction took 15438.62 ms. Allocated memory is still 534.8 MB. Free memory was 327.0 MB in the beginning and 319.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:03,142 INFO L168 Benchmark]: Witness Printer took 1095.59 ms. Allocated memory is still 534.8 MB. Free memory was 319.4 MB in the beginning and 119.0 MB in the end (delta: 200.3 MB). Peak memory consumption was 229.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:03,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 37.4 MB in the beginning and 37.4 MB in the end (delta: 63.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5550.15 ms. Allocated memory was 83.9 MB in the beginning and 213.9 MB in the end (delta: 130.0 MB). Free memory was 38.7 MB in the beginning and 84.8 MB in the end (delta: -46.1 MB). Peak memory consumption was 92.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 376.99 ms. Allocated memory is still 213.9 MB. Free memory was 84.8 MB in the beginning and 116.5 MB in the end (delta: -31.7 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 226.89 ms. Allocated memory is still 213.9 MB. Free memory was 116.5 MB in the beginning and 99.6 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 243625.35 ms. Allocated memory was 213.9 MB in the beginning and 534.8 MB in the end (delta: 320.9 MB). Free memory was 99.6 MB in the beginning and 328.0 MB in the end (delta: -228.4 MB). Peak memory consumption was 313.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15438.62 ms. Allocated memory is still 534.8 MB. Free memory was 327.0 MB in the beginning and 319.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Witness Printer took 1095.59 ms. Allocated memory is still 534.8 MB. Free memory was 319.4 MB in the beginning and 119.0 MB in the end (delta: 200.3 MB). Peak memory consumption was 229.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11827]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11827]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11827]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11827]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11827]: 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 CFG has 1 procedures, 130 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15367.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 11665.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 86.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 10923.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 255.5ms SsaConstructionTime, 1247.6ms SatisfiabilityAnalysisTime, 1726.2ms InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:51:03,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f1a8a7-a680-46df-9d88-96edbeb56d50/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...