./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD --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 a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:33:21,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:33:21,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:33:21,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:33:21,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:33:21,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:33:21,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:33:21,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:33:21,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:33:21,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:33:21,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:33:21,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:33:21,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:33:21,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:33:21,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:33:21,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:33:21,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:33:21,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:33:21,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:33:21,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:33:21,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:33:21,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:33:21,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:33:21,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:33:21,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:33:21,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:33:21,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:33:21,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:33:21,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:33:21,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:33:21,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:33:21,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:33:21,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:33:21,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:33:21,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:33:21,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:33:21,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:33:21,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:33:21,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:33:21,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:33:21,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:33:21,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:33:21,923 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:33:21,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:33:21,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:33:21,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:33:21,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:33:21,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:33:21,933 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:33:21,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:33:21,934 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:33:21,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:33:21,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:33:21,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:33:21,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:33:21,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:33:21,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:33:21,937 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:33:21,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:33:21,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:33:21,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:33:21,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:33:21,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:33:21,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:33:21,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:33:21,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:33:21,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:33:21,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:33:21,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:33:21,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:33:21,940 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:33:21,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:33:21,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:33:21,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:33:21,943 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_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 [2021-10-28 23:33:22,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:33:22,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:33:22,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:33:22,360 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:33:22,361 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:33:22,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2021-10-28 23:33:22,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/data/e04003d71/90034cf785034d88958ece165cf3c483/FLAGacc4d5d28 [2021-10-28 23:33:23,017 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:33:23,018 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2021-10-28 23:33:23,046 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/data/e04003d71/90034cf785034d88958ece165cf3c483/FLAGacc4d5d28 [2021-10-28 23:33:23,390 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/data/e04003d71/90034cf785034d88958ece165cf3c483 [2021-10-28 23:33:23,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:33:23,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:33:23,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:33:23,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:33:23,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:33:23,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c0a7fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23, skipping insertion in model container [2021-10-28 23:33:23,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:33:23,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:33:23,737 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_c76859cf-ab47-4ad3-992e-3efa7369e066/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2021-10-28 23:33:23,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:33:23,754 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:33:23,778 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_c76859cf-ab47-4ad3-992e-3efa7369e066/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2021-10-28 23:33:23,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:33:23,797 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:33:23,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23 WrapperNode [2021-10-28 23:33:23,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:33:23,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:33:23,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:33:23,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:33:23,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:33:23,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:33:23,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:33:23,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:33:23,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:33:23,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:33:23,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:33:23,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:33:23,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (1/1) ... [2021-10-28 23:33:23,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:33:23,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:23,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:33:23,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:33:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 23:33:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 23:33:23,992 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 23:33:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 23:33:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 23:33:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 23:33:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:33:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:33:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:33:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:33:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:33:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:33:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:33:23,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:33:23,998 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:33:24,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:33:24,597 INFO L299 CfgBuilder]: Removed 27 assume(true) statements. [2021-10-28 23:33:24,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:33:24 BoogieIcfgContainer [2021-10-28 23:33:24,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:33:24,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:33:24,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:33:24,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:33:24,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:33:23" (1/3) ... [2021-10-28 23:33:24,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de488d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:33:24, skipping insertion in model container [2021-10-28 23:33:24,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:33:23" (2/3) ... [2021-10-28 23:33:24,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de488d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:33:24, skipping insertion in model container [2021-10-28 23:33:24,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:33:24" (3/3) ... [2021-10-28 23:33:24,609 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-parray-copy.wvr.c [2021-10-28 23:33:24,615 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:33:24,616 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:33:24,616 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:33:24,616 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:33:24,670 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,670 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,671 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,671 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,672 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,672 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,672 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,673 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,673 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,674 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,674 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,674 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,675 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,675 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,675 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,675 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,675 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,676 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,676 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,676 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,676 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,677 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,678 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,678 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,678 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,679 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,679 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,680 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,680 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,681 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,681 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,682 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,682 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,683 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,683 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,684 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,685 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,685 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,685 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,685 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,686 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,686 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,686 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,686 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,687 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,687 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,687 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,687 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,687 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,688 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,688 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,688 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,688 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,689 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,689 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,689 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,689 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,690 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,690 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,690 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,690 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,690 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,691 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,691 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,691 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,691 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,695 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,695 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,695 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,696 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,696 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,701 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,702 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,702 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,704 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,704 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,704 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,705 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,705 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:33:24,715 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-28 23:33:24,767 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:33:24,775 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:33:24,775 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 23:33:24,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 190 transitions, 404 flow [2021-10-28 23:33:24,902 INFO L129 PetriNetUnfolder]: 17/187 cut-off events. [2021-10-28 23:33:24,902 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:33:24,908 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 187 events. 17/187 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 137. Up to 2 conditions per place. [2021-10-28 23:33:24,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 190 transitions, 404 flow [2021-10-28 23:33:24,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 177 transitions, 372 flow [2021-10-28 23:33:25,027 INFO L129 PetriNetUnfolder]: 17/176 cut-off events. [2021-10-28 23:33:25,027 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:33:25,028 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:25,029 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:25,029 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:25,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:25,036 INFO L85 PathProgramCache]: Analyzing trace with hash -788152322, now seen corresponding path program 1 times [2021-10-28 23:33:25,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:25,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223672993] [2021-10-28 23:33:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:25,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:33:25,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:25,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223672993] [2021-10-28 23:33:25,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223672993] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:33:25,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:33:25,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:33:25,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264663435] [2021-10-28 23:33:25,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:33:25,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:25,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:33:25,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:33:25,385 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 190 [2021-10-28 23:33:25,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 177 transitions, 372 flow. Second operand has 2 states, 2 states have (on average 178.0) internal successors, (356), 2 states have internal predecessors, (356), 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) [2021-10-28 23:33:25,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:25,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 190 [2021-10-28 23:33:25,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:25,448 INFO L129 PetriNetUnfolder]: 5/165 cut-off events. [2021-10-28 23:33:25,448 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 23:33:25,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 165 events. 5/165 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 116 event pairs, 0 based on Foata normal form. 12/165 useless extension candidates. Maximal degree in co-relation 174. Up to 2 conditions per place. [2021-10-28 23:33:25,452 INFO L132 encePairwiseOnDemand]: 178/190 looper letters, 0 selfloop transitions, 0 changer transitions 7/165 dead transitions. [2021-10-28 23:33:25,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 165 transitions, 348 flow [2021-10-28 23:33:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:33:25,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 23:33:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 366 transitions. [2021-10-28 23:33:25,469 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9631578947368421 [2021-10-28 23:33:25,470 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 366 transitions. [2021-10-28 23:33:25,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 366 transitions. [2021-10-28 23:33:25,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:25,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 366 transitions. [2021-10-28 23:33:25,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 183.0) internal successors, (366), 2 states have internal predecessors, (366), 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) [2021-10-28 23:33:25,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2021-10-28 23:33:25,491 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2021-10-28 23:33:25,494 INFO L186 Difference]: Start difference. First operand has 170 places, 177 transitions, 372 flow. Second operand 2 states and 366 transitions. [2021-10-28 23:33:25,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 165 transitions, 348 flow [2021-10-28 23:33:25,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 165 transitions, 336 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 23:33:25,508 INFO L242 Difference]: Finished difference. Result has 165 places, 158 transitions, 322 flow [2021-10-28 23:33:25,510 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=322, PETRI_PLACES=165, PETRI_TRANSITIONS=158} [2021-10-28 23:33:25,512 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, -5 predicate places. [2021-10-28 23:33:25,512 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 158 transitions, 322 flow [2021-10-28 23:33:25,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 178.0) internal successors, (356), 2 states have internal predecessors, (356), 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) [2021-10-28 23:33:25,513 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:25,513 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:25,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:33:25,514 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:25,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:25,515 INFO L85 PathProgramCache]: Analyzing trace with hash 962502516, now seen corresponding path program 1 times [2021-10-28 23:33:25,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:25,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798392100] [2021-10-28 23:33:25,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:25,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:33:26,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:26,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798392100] [2021-10-28 23:33:26,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798392100] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:33:26,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:33:26,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-28 23:33:26,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897934601] [2021-10-28 23:33:26,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:33:26,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:26,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:33:26,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:33:26,037 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 190 [2021-10-28 23:33:26,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 158 transitions, 322 flow. Second operand has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2021-10-28 23:33:26,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:26,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 190 [2021-10-28 23:33:26,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:26,663 INFO L129 PetriNetUnfolder]: 95/453 cut-off events. [2021-10-28 23:33:26,663 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:33:26,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 453 events. 95/453 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1574 event pairs, 40 based on Foata normal form. 2/370 useless extension candidates. Maximal degree in co-relation 662. Up to 160 conditions per place. [2021-10-28 23:33:26,675 INFO L132 encePairwiseOnDemand]: 175/190 looper letters, 57 selfloop transitions, 10 changer transitions 31/197 dead transitions. [2021-10-28 23:33:26,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 197 transitions, 596 flow [2021-10-28 23:33:26,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:33:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 23:33:26,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1543 transitions. [2021-10-28 23:33:26,691 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6246963562753036 [2021-10-28 23:33:26,692 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1543 transitions. [2021-10-28 23:33:26,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1543 transitions. [2021-10-28 23:33:26,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:26,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1543 transitions. [2021-10-28 23:33:26,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.6923076923077) internal successors, (1543), 13 states have internal predecessors, (1543), 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) [2021-10-28 23:33:26,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 190.0) internal successors, (2660), 14 states have internal predecessors, (2660), 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) [2021-10-28 23:33:26,715 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 190.0) internal successors, (2660), 14 states have internal predecessors, (2660), 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) [2021-10-28 23:33:26,715 INFO L186 Difference]: Start difference. First operand has 165 places, 158 transitions, 322 flow. Second operand 13 states and 1543 transitions. [2021-10-28 23:33:26,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 197 transitions, 596 flow [2021-10-28 23:33:26,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 197 transitions, 596 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 23:33:26,730 INFO L242 Difference]: Finished difference. Result has 177 places, 160 transitions, 372 flow [2021-10-28 23:33:26,732 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=372, PETRI_PLACES=177, PETRI_TRANSITIONS=160} [2021-10-28 23:33:26,735 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, 7 predicate places. [2021-10-28 23:33:26,736 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 160 transitions, 372 flow [2021-10-28 23:33:26,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2021-10-28 23:33:26,737 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:26,738 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:26,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:33:26,739 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:26,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:26,744 INFO L85 PathProgramCache]: Analyzing trace with hash -547892294, now seen corresponding path program 1 times [2021-10-28 23:33:26,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:26,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233345261] [2021-10-28 23:33:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:26,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:33:26,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:26,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233345261] [2021-10-28 23:33:26,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233345261] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:26,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289544553] [2021-10-28 23:33:26,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:26,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:26,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:26,998 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:27,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 23:33:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:27,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:33:27,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:33:27,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289544553] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:27,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:33:27,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 23:33:27,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237991835] [2021-10-28 23:33:27,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 23:33:27,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:27,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:33:27,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:33:27,772 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 190 [2021-10-28 23:33:27,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 160 transitions, 372 flow. Second operand has 10 states, 10 states have (on average 142.8) internal successors, (1428), 10 states have internal predecessors, (1428), 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) [2021-10-28 23:33:27,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:27,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 190 [2021-10-28 23:33:27,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:28,050 INFO L129 PetriNetUnfolder]: 29/244 cut-off events. [2021-10-28 23:33:28,050 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-10-28 23:33:28,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 244 events. 29/244 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 606 event pairs, 12 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 367. Up to 55 conditions per place. [2021-10-28 23:33:28,054 INFO L132 encePairwiseOnDemand]: 178/190 looper letters, 42 selfloop transitions, 11 changer transitions 0/173 dead transitions. [2021-10-28 23:33:28,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 504 flow [2021-10-28 23:33:28,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:33:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:33:28,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1305 transitions. [2021-10-28 23:33:28,060 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7631578947368421 [2021-10-28 23:33:28,060 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1305 transitions. [2021-10-28 23:33:28,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1305 transitions. [2021-10-28 23:33:28,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:28,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1305 transitions. [2021-10-28 23:33:28,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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) [2021-10-28 23:33:28,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 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) [2021-10-28 23:33:28,075 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 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) [2021-10-28 23:33:28,075 INFO L186 Difference]: Start difference. First operand has 177 places, 160 transitions, 372 flow. Second operand 9 states and 1305 transitions. [2021-10-28 23:33:28,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 504 flow [2021-10-28 23:33:28,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 173 transitions, 474 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-10-28 23:33:28,084 INFO L242 Difference]: Finished difference. Result has 170 places, 162 transitions, 378 flow [2021-10-28 23:33:28,085 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=378, PETRI_PLACES=170, PETRI_TRANSITIONS=162} [2021-10-28 23:33:28,085 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, 0 predicate places. [2021-10-28 23:33:28,085 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 162 transitions, 378 flow [2021-10-28 23:33:28,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.8) internal successors, (1428), 10 states have internal predecessors, (1428), 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) [2021-10-28 23:33:28,087 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:28,087 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:28,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:28,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:28,315 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:28,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:28,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1005547718, now seen corresponding path program 1 times [2021-10-28 23:33:28,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:28,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918030923] [2021-10-28 23:33:28,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:28,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:28,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:33:28,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:28,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918030923] [2021-10-28 23:33:28,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918030923] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:28,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283880606] [2021-10-28 23:33:28,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:28,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:28,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:28,548 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:28,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 23:33:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:28,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:33:28,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:29,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:33:29,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283880606] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:29,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:33:29,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 13 [2021-10-28 23:33:29,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397625550] [2021-10-28 23:33:29,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 23:33:29,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:29,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 23:33:29,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-28 23:33:29,277 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 190 [2021-10-28 23:33:29,280 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 162 transitions, 378 flow. Second operand has 13 states, 13 states have (on average 132.53846153846155) internal successors, (1723), 13 states have internal predecessors, (1723), 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) [2021-10-28 23:33:29,280 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:29,280 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 190 [2021-10-28 23:33:29,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:29,953 INFO L129 PetriNetUnfolder]: 772/1671 cut-off events. [2021-10-28 23:33:29,953 INFO L130 PetriNetUnfolder]: For 135/252 co-relation queries the response was YES. [2021-10-28 23:33:29,961 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3119 conditions, 1671 events. 772/1671 cut-off events. For 135/252 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 10936 event pairs, 388 based on Foata normal form. 117/1588 useless extension candidates. Maximal degree in co-relation 3112. Up to 698 conditions per place. [2021-10-28 23:33:29,979 INFO L132 encePairwiseOnDemand]: 175/190 looper letters, 74 selfloop transitions, 14 changer transitions 0/199 dead transitions. [2021-10-28 23:33:29,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 199 transitions, 634 flow [2021-10-28 23:33:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:33:29,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 23:33:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1508 transitions. [2021-10-28 23:33:29,986 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7215311004784689 [2021-10-28 23:33:29,987 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1508 transitions. [2021-10-28 23:33:29,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1508 transitions. [2021-10-28 23:33:29,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:29,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1508 transitions. [2021-10-28 23:33:29,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 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) [2021-10-28 23:33:29,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 190.0) internal successors, (2280), 12 states have internal predecessors, (2280), 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) [2021-10-28 23:33:30,001 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 190.0) internal successors, (2280), 12 states have internal predecessors, (2280), 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) [2021-10-28 23:33:30,001 INFO L186 Difference]: Start difference. First operand has 170 places, 162 transitions, 378 flow. Second operand 11 states and 1508 transitions. [2021-10-28 23:33:30,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 199 transitions, 634 flow [2021-10-28 23:33:30,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 199 transitions, 616 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 23:33:30,009 INFO L242 Difference]: Finished difference. Result has 177 places, 166 transitions, 414 flow [2021-10-28 23:33:30,010 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=414, PETRI_PLACES=177, PETRI_TRANSITIONS=166} [2021-10-28 23:33:30,010 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, 7 predicate places. [2021-10-28 23:33:30,011 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 166 transitions, 414 flow [2021-10-28 23:33:30,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 132.53846153846155) internal successors, (1723), 13 states have internal predecessors, (1723), 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) [2021-10-28 23:33:30,016 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:30,016 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:30,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:30,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:30,243 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:30,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:30,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1863116034, now seen corresponding path program 2 times [2021-10-28 23:33:30,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:30,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716508012] [2021-10-28 23:33:30,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:30,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:33:30,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:30,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716508012] [2021-10-28 23:33:30,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716508012] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:30,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029041188] [2021-10-28 23:33:30,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:33:30,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:30,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:30,471 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:30,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 23:33:30,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 23:33:30,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:33:30,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:33:30,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:33:31,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029041188] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:33:31,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:33:31,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-10-28 23:33:31,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863106779] [2021-10-28 23:33:31,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:33:31,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:31,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:33:31,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:33:31,201 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 190 [2021-10-28 23:33:31,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 166 transitions, 414 flow. Second operand has 8 states, 8 states have (on average 123.25) internal successors, (986), 8 states have internal predecessors, (986), 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) [2021-10-28 23:33:31,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:31,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 190 [2021-10-28 23:33:31,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:32,017 INFO L129 PetriNetUnfolder]: 1316/2907 cut-off events. [2021-10-28 23:33:32,018 INFO L130 PetriNetUnfolder]: For 688/881 co-relation queries the response was YES. [2021-10-28 23:33:32,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6014 conditions, 2907 events. 1316/2907 cut-off events. For 688/881 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 22696 event pairs, 742 based on Foata normal form. 194/3054 useless extension candidates. Maximal degree in co-relation 6004. Up to 1129 conditions per place. [2021-10-28 23:33:32,069 INFO L132 encePairwiseOnDemand]: 177/190 looper letters, 91 selfloop transitions, 12 changer transitions 4/217 dead transitions. [2021-10-28 23:33:32,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 217 transitions, 779 flow [2021-10-28 23:33:32,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 23:33:32,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 23:33:32,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1398 transitions. [2021-10-28 23:33:32,077 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6688995215311004 [2021-10-28 23:33:32,077 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1398 transitions. [2021-10-28 23:33:32,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1398 transitions. [2021-10-28 23:33:32,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:32,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1398 transitions. [2021-10-28 23:33:32,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 127.0909090909091) internal successors, (1398), 11 states have internal predecessors, (1398), 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) [2021-10-28 23:33:32,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 190.0) internal successors, (2280), 12 states have internal predecessors, (2280), 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) [2021-10-28 23:33:32,094 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 190.0) internal successors, (2280), 12 states have internal predecessors, (2280), 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) [2021-10-28 23:33:32,094 INFO L186 Difference]: Start difference. First operand has 177 places, 166 transitions, 414 flow. Second operand 11 states and 1398 transitions. [2021-10-28 23:33:32,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 217 transitions, 779 flow [2021-10-28 23:33:32,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 217 transitions, 754 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-10-28 23:33:32,105 INFO L242 Difference]: Finished difference. Result has 186 places, 171 transitions, 468 flow [2021-10-28 23:33:32,106 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=468, PETRI_PLACES=186, PETRI_TRANSITIONS=171} [2021-10-28 23:33:32,106 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, 16 predicate places. [2021-10-28 23:33:32,107 INFO L470 AbstractCegarLoop]: Abstraction has has 186 places, 171 transitions, 468 flow [2021-10-28 23:33:32,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 123.25) internal successors, (986), 8 states have internal predecessors, (986), 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) [2021-10-28 23:33:32,108 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:32,108 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:32,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:32,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:32,323 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:32,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:32,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1051468468, now seen corresponding path program 3 times [2021-10-28 23:33:32,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:32,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073786499] [2021-10-28 23:33:32,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:32,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:33:32,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:32,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073786499] [2021-10-28 23:33:32,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073786499] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:32,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254030211] [2021-10-28 23:33:32,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:33:32,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:32,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:32,538 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:32,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 23:33:32,861 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-28 23:33:32,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:33:32,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:33:32,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:33:33,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254030211] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:33:33,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:33:33,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2021-10-28 23:33:33,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168465784] [2021-10-28 23:33:33,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 23:33:33,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:33,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:33:33,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:33:33,427 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 190 [2021-10-28 23:33:33,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 171 transitions, 468 flow. Second operand has 8 states, 8 states have (on average 123.25) internal successors, (986), 8 states have internal predecessors, (986), 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) [2021-10-28 23:33:33,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:33,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 190 [2021-10-28 23:33:33,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:34,491 INFO L129 PetriNetUnfolder]: 1567/3311 cut-off events. [2021-10-28 23:33:34,491 INFO L130 PetriNetUnfolder]: For 1860/2090 co-relation queries the response was YES. [2021-10-28 23:33:34,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7664 conditions, 3311 events. 1567/3311 cut-off events. For 1860/2090 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 26010 event pairs, 638 based on Foata normal form. 231/3409 useless extension candidates. Maximal degree in co-relation 7648. Up to 1154 conditions per place. [2021-10-28 23:33:34,550 INFO L132 encePairwiseOnDemand]: 179/190 looper letters, 101 selfloop transitions, 15 changer transitions 4/230 dead transitions. [2021-10-28 23:33:34,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 230 transitions, 901 flow [2021-10-28 23:33:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:33:34,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 23:33:34,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1174 transitions. [2021-10-28 23:33:34,558 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6865497076023391 [2021-10-28 23:33:34,558 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1174 transitions. [2021-10-28 23:33:34,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1174 transitions. [2021-10-28 23:33:34,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:34,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1174 transitions. [2021-10-28 23:33:34,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.44444444444446) internal successors, (1174), 9 states have internal predecessors, (1174), 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) [2021-10-28 23:33:34,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 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) [2021-10-28 23:33:34,572 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 190.0) internal successors, (1900), 10 states have internal predecessors, (1900), 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) [2021-10-28 23:33:34,573 INFO L186 Difference]: Start difference. First operand has 186 places, 171 transitions, 468 flow. Second operand 9 states and 1174 transitions. [2021-10-28 23:33:34,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 230 transitions, 901 flow [2021-10-28 23:33:34,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 230 transitions, 869 flow, removed 9 selfloop flow, removed 6 redundant places. [2021-10-28 23:33:34,596 INFO L242 Difference]: Finished difference. Result has 192 places, 177 transitions, 552 flow [2021-10-28 23:33:34,597 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=552, PETRI_PLACES=192, PETRI_TRANSITIONS=177} [2021-10-28 23:33:34,598 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, 22 predicate places. [2021-10-28 23:33:34,598 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 177 transitions, 552 flow [2021-10-28 23:33:34,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 123.25) internal successors, (986), 8 states have internal predecessors, (986), 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) [2021-10-28 23:33:34,599 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:34,599 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:34,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-28 23:33:34,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:34,815 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:34,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:34,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1484663810, now seen corresponding path program 4 times [2021-10-28 23:33:34,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:34,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697409836] [2021-10-28 23:33:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:34,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:35,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:33:35,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:35,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697409836] [2021-10-28 23:33:35,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697409836] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:35,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368746161] [2021-10-28 23:33:35,012 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:33:35,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:35,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:35,019 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:35,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 23:33:35,361 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:33:35,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:33:35,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:33:35,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:33:35,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368746161] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:35,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:33:35,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2021-10-28 23:33:35,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868890624] [2021-10-28 23:33:35,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:33:35,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:33:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:33:35,983 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 190 [2021-10-28 23:33:35,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 177 transitions, 552 flow. Second operand has 14 states, 14 states have (on average 132.28571428571428) internal successors, (1852), 14 states have internal predecessors, (1852), 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) [2021-10-28 23:33:35,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:35,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 190 [2021-10-28 23:33:35,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:37,205 INFO L129 PetriNetUnfolder]: 1563/3267 cut-off events. [2021-10-28 23:33:37,205 INFO L130 PetriNetUnfolder]: For 3151/3381 co-relation queries the response was YES. [2021-10-28 23:33:37,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7982 conditions, 3267 events. 1563/3267 cut-off events. For 3151/3381 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 24860 event pairs, 292 based on Foata normal form. 234/3370 useless extension candidates. Maximal degree in co-relation 7962. Up to 627 conditions per place. [2021-10-28 23:33:37,256 INFO L132 encePairwiseOnDemand]: 174/190 looper letters, 109 selfloop transitions, 29 changer transitions 0/249 dead transitions. [2021-10-28 23:33:37,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 249 transitions, 1113 flow [2021-10-28 23:33:37,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:33:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-28 23:33:37,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1927 transitions. [2021-10-28 23:33:37,265 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7244360902255639 [2021-10-28 23:33:37,265 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1927 transitions. [2021-10-28 23:33:37,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1927 transitions. [2021-10-28 23:33:37,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:37,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1927 transitions. [2021-10-28 23:33:37,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 137.64285714285714) internal successors, (1927), 14 states have internal predecessors, (1927), 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) [2021-10-28 23:33:37,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 190.0) internal successors, (2850), 15 states have internal predecessors, (2850), 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) [2021-10-28 23:33:37,285 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 190.0) internal successors, (2850), 15 states have internal predecessors, (2850), 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) [2021-10-28 23:33:37,286 INFO L186 Difference]: Start difference. First operand has 192 places, 177 transitions, 552 flow. Second operand 14 states and 1927 transitions. [2021-10-28 23:33:37,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 249 transitions, 1113 flow [2021-10-28 23:33:37,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 249 transitions, 1078 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-10-28 23:33:37,308 INFO L242 Difference]: Finished difference. Result has 204 places, 188 transitions, 702 flow [2021-10-28 23:33:37,309 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=702, PETRI_PLACES=204, PETRI_TRANSITIONS=188} [2021-10-28 23:33:37,309 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, 34 predicate places. [2021-10-28 23:33:37,309 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 188 transitions, 702 flow [2021-10-28 23:33:37,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 132.28571428571428) internal successors, (1852), 14 states have internal predecessors, (1852), 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) [2021-10-28 23:33:37,311 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:37,311 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:37,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:37,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:37,535 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:37,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:37,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1079495732, now seen corresponding path program 5 times [2021-10-28 23:33:37,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:37,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715039062] [2021-10-28 23:33:37,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:37,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:33:37,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:37,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715039062] [2021-10-28 23:33:37,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715039062] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:37,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884735863] [2021-10-28 23:33:37,787 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:33:37,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:37,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:37,803 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:37,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 23:33:38,311 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:33:38,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:33:38,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:33:38,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 23:33:38,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884735863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:38,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:33:38,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 14 [2021-10-28 23:33:38,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342321552] [2021-10-28 23:33:38,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 23:33:38,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:38,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:33:38,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:33:38,796 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 190 [2021-10-28 23:33:38,799 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 188 transitions, 702 flow. Second operand has 14 states, 14 states have (on average 128.57142857142858) internal successors, (1800), 14 states have internal predecessors, (1800), 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) [2021-10-28 23:33:38,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:38,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 190 [2021-10-28 23:33:38,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:42,314 INFO L129 PetriNetUnfolder]: 6123/11676 cut-off events. [2021-10-28 23:33:42,315 INFO L130 PetriNetUnfolder]: For 18290/18290 co-relation queries the response was YES. [2021-10-28 23:33:42,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30626 conditions, 11676 events. 6123/11676 cut-off events. For 18290/18290 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 92585 event pairs, 823 based on Foata normal form. 12/11594 useless extension candidates. Maximal degree in co-relation 30603. Up to 1080 conditions per place. [2021-10-28 23:33:42,518 INFO L132 encePairwiseOnDemand]: 170/190 looper letters, 221 selfloop transitions, 105 changer transitions 4/434 dead transitions. [2021-10-28 23:33:42,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 434 transitions, 2450 flow [2021-10-28 23:33:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:33:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-28 23:33:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3115 transitions. [2021-10-28 23:33:42,535 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7128146453089245 [2021-10-28 23:33:42,535 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3115 transitions. [2021-10-28 23:33:42,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3115 transitions. [2021-10-28 23:33:42,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:42,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3115 transitions. [2021-10-28 23:33:42,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 135.43478260869566) internal successors, (3115), 23 states have internal predecessors, (3115), 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) [2021-10-28 23:33:42,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 190.0) internal successors, (4560), 24 states have internal predecessors, (4560), 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) [2021-10-28 23:33:42,564 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 190.0) internal successors, (4560), 24 states have internal predecessors, (4560), 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) [2021-10-28 23:33:42,565 INFO L186 Difference]: Start difference. First operand has 204 places, 188 transitions, 702 flow. Second operand 23 states and 3115 transitions. [2021-10-28 23:33:42,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 434 transitions, 2450 flow [2021-10-28 23:33:42,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 434 transitions, 2389 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-10-28 23:33:42,822 INFO L242 Difference]: Finished difference. Result has 228 places, 259 transitions, 1506 flow [2021-10-28 23:33:42,823 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1506, PETRI_PLACES=228, PETRI_TRANSITIONS=259} [2021-10-28 23:33:42,823 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, 58 predicate places. [2021-10-28 23:33:42,823 INFO L470 AbstractCegarLoop]: Abstraction has has 228 places, 259 transitions, 1506 flow [2021-10-28 23:33:42,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.57142857142858) internal successors, (1800), 14 states have internal predecessors, (1800), 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) [2021-10-28 23:33:42,843 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:33:42,843 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:33:42,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:43,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-28 23:33:43,057 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 23:33:43,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:33:43,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1683508872, now seen corresponding path program 6 times [2021-10-28 23:33:43,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:33:43,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964108696] [2021-10-28 23:33:43,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:33:43,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:33:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:33:43,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:33:43,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:33:43,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964108696] [2021-10-28 23:33:43,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964108696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:33:43,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442260596] [2021-10-28 23:33:43,208 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 23:33:43,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:43,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:33:43,209 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:33:43,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:33:43,616 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-10-28 23:33:43,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:33:43,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:33:43,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:33:44,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:33:44,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442260596] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:33:44,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:33:44,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2021-10-28 23:33:44,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408311544] [2021-10-28 23:33:44,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 23:33:44,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:33:44,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:33:44,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-10-28 23:33:44,309 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 190 [2021-10-28 23:33:44,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 259 transitions, 1506 flow. Second operand has 9 states, 9 states have (on average 129.0) internal successors, (1161), 9 states have internal predecessors, (1161), 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) [2021-10-28 23:33:44,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:33:44,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 190 [2021-10-28 23:33:44,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:33:44,618 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2021-10-28 23:33:44,618 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-10-28 23:33:44,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 93 events. 2/93 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 1/94 useless extension candidates. Maximal degree in co-relation 151. Up to 17 conditions per place. [2021-10-28 23:33:44,619 INFO L132 encePairwiseOnDemand]: 173/190 looper letters, 0 selfloop transitions, 0 changer transitions 84/84 dead transitions. [2021-10-28 23:33:44,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 84 transitions, 281 flow [2021-10-28 23:33:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 23:33:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-28 23:33:44,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1646 transitions. [2021-10-28 23:33:44,625 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6663967611336032 [2021-10-28 23:33:44,626 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1646 transitions. [2021-10-28 23:33:44,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1646 transitions. [2021-10-28 23:33:44,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:33:44,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1646 transitions. [2021-10-28 23:33:44,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 126.61538461538461) internal successors, (1646), 13 states have internal predecessors, (1646), 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) [2021-10-28 23:33:44,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 190.0) internal successors, (2660), 14 states have internal predecessors, (2660), 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) [2021-10-28 23:33:44,641 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 190.0) internal successors, (2660), 14 states have internal predecessors, (2660), 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) [2021-10-28 23:33:44,641 INFO L186 Difference]: Start difference. First operand has 228 places, 259 transitions, 1506 flow. Second operand 13 states and 1646 transitions. [2021-10-28 23:33:44,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 84 transitions, 281 flow [2021-10-28 23:33:44,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 84 transitions, 258 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-28 23:33:44,644 INFO L242 Difference]: Finished difference. Result has 122 places, 0 transitions, 0 flow [2021-10-28 23:33:44,644 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=122, PETRI_TRANSITIONS=0} [2021-10-28 23:33:44,645 INFO L334 CegarLoopForPetriNet]: 170 programPoint places, -48 predicate places. [2021-10-28 23:33:44,645 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 0 transitions, 0 flow [2021-10-28 23:33:44,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 129.0) internal successors, (1161), 9 states have internal predecessors, (1161), 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) [2021-10-28 23:33:44,648 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:33:44,649 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:33:44,649 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 23:33:44,649 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 23:33:44,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:33:44,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:33:44,868 INFO L731 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2021-10-28 23:33:44,870 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:33:44,871 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:33:44,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:33:44 BasicIcfg [2021-10-28 23:33:44,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:33:44,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:33:44,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:33:44,874 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:33:44,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:33:24" (3/4) ... [2021-10-28 23:33:44,878 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:33:44,897 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 23:33:44,897 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 23:33:44,897 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 23:33:44,909 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2021-10-28 23:33:44,909 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:33:44,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:33:44,910 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:33:44,987 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:33:44,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:33:44,989 INFO L168 Benchmark]: Toolchain (without parser) took 21590.99 ms. Allocated memory was 113.2 MB in the beginning and 700.4 MB in the end (delta: 587.2 MB). Free memory was 77.5 MB in the beginning and 410.3 MB in the end (delta: -332.8 MB). Peak memory consumption was 254.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:44,990 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 113.2 MB. Free memory was 87.2 MB in the beginning and 87.2 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:33:44,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.78 ms. Allocated memory is still 113.2 MB. Free memory was 77.3 MB in the beginning and 86.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:44,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 113.2 MB. Free memory was 86.8 MB in the beginning and 85.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:44,991 INFO L168 Benchmark]: Boogie Preprocessor took 34.62 ms. Allocated memory is still 113.2 MB. Free memory was 85.2 MB in the beginning and 83.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:33:44,992 INFO L168 Benchmark]: RCFGBuilder took 717.51 ms. Allocated memory is still 113.2 MB. Free memory was 83.7 MB in the beginning and 67.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:44,992 INFO L168 Benchmark]: TraceAbstraction took 20271.38 ms. Allocated memory was 113.2 MB in the beginning and 700.4 MB in the end (delta: 587.2 MB). Free memory was 67.2 MB in the beginning and 413.5 MB in the end (delta: -346.3 MB). Peak memory consumption was 242.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:44,993 INFO L168 Benchmark]: Witness Printer took 113.55 ms. Allocated memory is still 700.4 MB. Free memory was 413.5 MB in the beginning and 410.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:33:44,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 113.2 MB. Free memory was 87.2 MB in the beginning and 87.2 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 396.78 ms. Allocated memory is still 113.2 MB. Free memory was 77.3 MB in the beginning and 86.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 113.2 MB. Free memory was 86.8 MB in the beginning and 85.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.62 ms. Allocated memory is still 113.2 MB. Free memory was 85.2 MB in the beginning and 83.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 717.51 ms. Allocated memory is still 113.2 MB. Free memory was 83.7 MB in the beginning and 67.7 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20271.38 ms. Allocated memory was 113.2 MB in the beginning and 700.4 MB in the end (delta: 587.2 MB). Free memory was 67.2 MB in the beginning and 413.5 MB in the end (delta: -346.3 MB). Peak memory consumption was 242.7 MB. Max. memory is 16.1 GB. * Witness Printer took 113.55 ms. Allocated memory is still 700.4 MB. Free memory was 413.5 MB in the beginning and 410.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 92]: 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, 210 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: 20.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 312 SDtfs, 1248 SDslu, 1136 SDs, 0 SdLazy, 2468 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1152 GetRequests, 983 SyntacticMatches, 4 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1506occurred in iteration=8, InterpolantAutomatonStates: 105, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 2248 NumberOfCodeBlocks, 2168 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2232 ConstructedInterpolants, 0 QuantifiedInterpolants, 5104 SizeOfPredicates, 43 NumberOfNonLiveVariables, 2085 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 28/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:33:45,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c76859cf-ab47-4ad3-992e-3efa7369e066/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...