./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/spaghetti.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/spaghetti.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be --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 7180497d864d9c03703209b2cb932e68374297f11878b4d07ab8930081a56e5e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:16:02,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:16:02,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:16:02,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:16:02,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:16:02,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:16:02,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:16:02,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:16:03,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:16:03,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:16:03,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:16:03,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:16:03,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:16:03,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:16:03,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:16:03,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:16:03,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:16:03,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:16:03,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:16:03,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:16:03,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:16:03,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:16:03,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:16:03,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:16:03,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:16:03,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:16:03,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:16:03,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:16:03,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:16:03,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:16:03,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:16:03,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:16:03,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:16:03,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:16:03,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:16:03,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:16:03,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:16:03,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:16:03,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:16:03,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:16:03,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:16:03,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:16:03,113 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:16:03,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:16:03,114 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:16:03,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:16:03,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:16:03,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:16:03,122 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:16:03,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:16:03,123 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:16:03,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:16:03,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:16:03,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:16:03,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:16:03,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:16:03,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:16:03,125 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:16:03,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:16:03,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:16:03,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:16:03,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:16:03,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:16:03,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:16:03,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:16:03,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:16:03,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:16:03,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:16:03,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:16:03,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:16:03,128 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:16:03,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:16:03,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:16:03,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:16:03,129 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_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7180497d864d9c03703209b2cb932e68374297f11878b4d07ab8930081a56e5e [2021-10-21 20:16:03,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:16:03,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:16:03,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:16:03,496 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:16:03,497 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:16:03,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/weaver/spaghetti.wvr.c [2021-10-21 20:16:03,570 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/data/041d063d4/a8c144da89bc4bd19752c3d9bae33e57/FLAG34de5ab93 [2021-10-21 20:16:04,157 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:16:04,160 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/sv-benchmarks/c/weaver/spaghetti.wvr.c [2021-10-21 20:16:04,174 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/data/041d063d4/a8c144da89bc4bd19752c3d9bae33e57/FLAG34de5ab93 [2021-10-21 20:16:04,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/data/041d063d4/a8c144da89bc4bd19752c3d9bae33e57 [2021-10-21 20:16:04,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:16:04,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:16:04,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:16:04,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:16:04,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:16:04,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4cbde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04, skipping insertion in model container [2021-10-21 20:16:04,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:16:04,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:16:04,739 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_7105ffc6-b52e-4a6d-ada1-8d96ec702207/sv-benchmarks/c/weaver/spaghetti.wvr.c[2397,2410] [2021-10-21 20:16:04,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:16:04,753 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:16:04,780 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_7105ffc6-b52e-4a6d-ada1-8d96ec702207/sv-benchmarks/c/weaver/spaghetti.wvr.c[2397,2410] [2021-10-21 20:16:04,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:16:04,798 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:16:04,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04 WrapperNode [2021-10-21 20:16:04,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:16:04,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:16:04,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:16:04,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:16:04,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:16:04,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:16:04,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:16:04,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:16:04,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:16:04,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:16:04,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:16:04,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:16:04,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (1/1) ... [2021-10-21 20:16:04,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:16:04,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:16:04,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:16:04,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:16:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-21 20:16:04,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-21 20:16:04,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-21 20:16:04,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-21 20:16:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-21 20:16:04,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-21 20:16:04,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-21 20:16:04,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-21 20:16:04,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:16:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:16:04,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:16:04,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:16:04,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:16:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:16:04,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:16:04,976 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-21 20:16:05,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:16:05,376 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-21 20:16:05,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:16:05 BoogieIcfgContainer [2021-10-21 20:16:05,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:16:05,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:16:05,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:16:05,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:16:05,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:16:04" (1/3) ... [2021-10-21 20:16:05,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3f4afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:16:05, skipping insertion in model container [2021-10-21 20:16:05,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:16:04" (2/3) ... [2021-10-21 20:16:05,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3f4afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:16:05, skipping insertion in model container [2021-10-21 20:16:05,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:16:05" (3/3) ... [2021-10-21 20:16:05,395 INFO L111 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2021-10-21 20:16:05,405 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-21 20:16:05,405 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:16:05,405 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:16:05,405 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-21 20:16:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,446 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,448 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,449 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,449 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,450 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,451 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,451 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,451 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,451 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,452 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,453 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,454 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,454 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,454 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,455 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,455 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,455 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,455 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,456 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,457 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,457 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,457 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,458 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,458 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,458 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,458 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,459 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,459 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,459 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,459 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,460 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,460 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,460 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,460 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,464 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,464 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,464 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,464 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,469 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,469 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,469 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,472 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,472 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,472 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,475 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,475 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,475 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,475 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-21 20:16:05,489 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-21 20:16:05,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:16:05,558 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 [2021-10-21 20:16:05,558 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-21 20:16:05,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 122 transitions, 276 flow [2021-10-21 20:16:05,681 INFO L129 PetriNetUnfolder]: 9/118 cut-off events. [2021-10-21 20:16:05,681 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-21 20:16:05,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 118 events. 9/118 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 119 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2021-10-21 20:16:05,687 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 122 transitions, 276 flow [2021-10-21 20:16:05,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 106 transitions, 236 flow [2021-10-21 20:16:05,773 INFO L129 PetriNetUnfolder]: 9/105 cut-off events. [2021-10-21 20:16:05,773 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-21 20:16:05,774 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:16:05,774 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] [2021-10-21 20:16:05,775 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-21 20:16:05,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:16:05,780 INFO L82 PathProgramCache]: Analyzing trace with hash -217288248, now seen corresponding path program 1 times [2021-10-21 20:16:05,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:16:05,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061776521] [2021-10-21 20:16:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:16:05,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:16:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:16:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:16:06,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:16:06,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061776521] [2021-10-21 20:16:06,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061776521] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:16:06,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:16:06,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:16:06,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723299418] [2021-10-21 20:16:06,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:16:06,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:16:06,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:16:06,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:16:06,123 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 122 [2021-10-21 20:16:06,127 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 106 transitions, 236 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2021-10-21 20:16:06,127 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:16:06,127 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 122 [2021-10-21 20:16:06,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:16:06,161 INFO L129 PetriNetUnfolder]: 4/101 cut-off events. [2021-10-21 20:16:06,162 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-21 20:16:06,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 101 events. 4/101 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 99 event pairs, 0 based on Foata normal form. 5/101 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2021-10-21 20:16:06,165 INFO L132 encePairwiseOnDemand]: 117/122 looper letters, 0 selfloop transitions, 0 changer transitions 1/101 dead transitions. [2021-10-21 20:16:06,165 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 101 transitions, 226 flow [2021-10-21 20:16:06,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:16:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-21 20:16:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 237 transitions. [2021-10-21 20:16:06,179 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9713114754098361 [2021-10-21 20:16:06,180 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 237 transitions. [2021-10-21 20:16:06,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 237 transitions. [2021-10-21 20:16:06,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:16:06,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 237 transitions. [2021-10-21 20:16:06,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 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) [2021-10-21 20:16:06,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 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) [2021-10-21 20:16:06,196 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 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) [2021-10-21 20:16:06,198 INFO L186 Difference]: Start difference. First operand has 110 places, 106 transitions, 236 flow. Second operand 2 states and 237 transitions. [2021-10-21 20:16:06,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 101 transitions, 226 flow [2021-10-21 20:16:06,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 210 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-21 20:16:06,208 INFO L242 Difference]: Finished difference. Result has 103 places, 100 transitions, 208 flow [2021-10-21 20:16:06,211 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=208, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2021-10-21 20:16:06,212 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, -7 predicate places. [2021-10-21 20:16:06,212 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 208 flow [2021-10-21 20:16:06,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2021-10-21 20:16:06,213 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:16:06,213 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] [2021-10-21 20:16:06,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:16:06,213 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-21 20:16:06,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:16:06,214 INFO L82 PathProgramCache]: Analyzing trace with hash -692068046, now seen corresponding path program 1 times [2021-10-21 20:16:06,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:16:06,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101663966] [2021-10-21 20:16:06,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:16:06,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:16:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:16:06,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:16:06,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:16:06,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101663966] [2021-10-21 20:16:06,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101663966] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:16:06,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:16:06,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:16:06,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430564002] [2021-10-21 20:16:06,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:16:06,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:16:06,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:16:06,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:16:06,683 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 122 [2021-10-21 20:16:06,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 100 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 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) [2021-10-21 20:16:06,685 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:16:06,685 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 122 [2021-10-21 20:16:06,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:16:06,956 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([315] L75-->L76: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][95], [83#L76true, 35#L53-3true, 134#(= ~x_0~0 0), 66#L63-3true, 46#L49true, 129#true, 68#L92-4true]) [2021-10-21 20:16:06,957 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-10-21 20:16:06,957 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-10-21 20:16:06,957 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-10-21 20:16:06,958 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:06,958 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([311] L74-4-->L80: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][98], [29#L80true, 35#L53-3true, 135#(and (= ~x_0~0 0) (= ~x_1~0 0)), 66#L63-3true, 46#L49true, 129#true, 68#L92-4true]) [2021-10-21 20:16:06,958 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-10-21 20:16:06,959 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-10-21 20:16:06,959 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:06,959 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-10-21 20:16:06,969 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([315] L75-->L76: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][93], [132#true, 83#L76true, 35#L53-3true, 70#L43-1true, 66#L63-3true, 129#true, 68#L92-4true]) [2021-10-21 20:16:06,969 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-10-21 20:16:06,970 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-10-21 20:16:06,970 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:06,970 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-10-21 20:16:06,971 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([311] L74-4-->L80: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][96], [132#true, 29#L80true, 35#L53-3true, 70#L43-1true, 66#L63-3true, 129#true, 68#L92-4true]) [2021-10-21 20:16:06,971 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-10-21 20:16:06,971 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:06,971 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-10-21 20:16:06,971 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-10-21 20:16:07,021 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([315] L75-->L76: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][93], [132#true, 83#L76true, 35#L53-3true, 66#L63-3true, 129#true, 48#L45true, 68#L92-4true]) [2021-10-21 20:16:07,021 INFO L384 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,021 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2021-10-21 20:16:07,022 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,022 INFO L387 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2021-10-21 20:16:07,022 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([311] L74-4-->L80: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][96], [132#true, 29#L80true, 35#L53-3true, 66#L63-3true, 129#true, 48#L45true, 68#L92-4true]) [2021-10-21 20:16:07,023 INFO L384 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,023 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2021-10-21 20:16:07,023 INFO L387 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2021-10-21 20:16:07,023 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,217 INFO L129 PetriNetUnfolder]: 895/1967 cut-off events. [2021-10-21 20:16:07,217 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-21 20:16:07,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3168 conditions, 1967 events. 895/1967 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 13889 event pairs, 238 based on Foata normal form. 1/1798 useless extension candidates. Maximal degree in co-relation 3165. Up to 666 conditions per place. [2021-10-21 20:16:07,294 INFO L132 encePairwiseOnDemand]: 108/122 looper letters, 33 selfloop transitions, 13 changer transitions 7/131 dead transitions. [2021-10-21 20:16:07,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 131 transitions, 376 flow [2021-10-21 20:16:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:16:07,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-21 20:16:07,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 612 transitions. [2021-10-21 20:16:07,300 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8360655737704918 [2021-10-21 20:16:07,300 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 612 transitions. [2021-10-21 20:16:07,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 612 transitions. [2021-10-21 20:16:07,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:16:07,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 612 transitions. [2021-10-21 20:16:07,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2021-10-21 20:16:07,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2021-10-21 20:16:07,312 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2021-10-21 20:16:07,312 INFO L186 Difference]: Start difference. First operand has 103 places, 100 transitions, 208 flow. Second operand 6 states and 612 transitions. [2021-10-21 20:16:07,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 131 transitions, 376 flow [2021-10-21 20:16:07,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 131 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-21 20:16:07,320 INFO L242 Difference]: Finished difference. Result has 112 places, 110 transitions, 302 flow [2021-10-21 20:16:07,320 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=112, PETRI_TRANSITIONS=110} [2021-10-21 20:16:07,321 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 2 predicate places. [2021-10-21 20:16:07,321 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 110 transitions, 302 flow [2021-10-21 20:16:07,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 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) [2021-10-21 20:16:07,322 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-21 20:16:07,323 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] [2021-10-21 20:16:07,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:16:07,323 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-21 20:16:07,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:16:07,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1316060508, now seen corresponding path program 2 times [2021-10-21 20:16:07,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:16:07,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122192636] [2021-10-21 20:16:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:16:07,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:16:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:16:07,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:16:07,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:16:07,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122192636] [2021-10-21 20:16:07,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122192636] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:16:07,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:16:07,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 20:16:07,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70683497] [2021-10-21 20:16:07,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:16:07,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:16:07,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:16:07,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:16:07,495 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 122 [2021-10-21 20:16:07,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 110 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 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) [2021-10-21 20:16:07,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-21 20:16:07,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 122 [2021-10-21 20:16:07,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-21 20:16:07,739 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([315] L75-->L76: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][97], [Black: 132#true, Black: 141#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), Black: 135#(and (= ~x_0~0 0) (= ~x_1~0 0)), 83#L76true, 35#L53-3true, 148#true, 134#(= ~x_0~0 0), 46#L49true, 66#L63-3true, 129#true, 68#L92-4true, Black: 139#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0))]) [2021-10-21 20:16:07,739 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-10-21 20:16:07,740 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-10-21 20:16:07,740 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-10-21 20:16:07,740 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,740 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([311] L74-4-->L80: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][102], [Black: 132#true, Black: 141#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), Black: 134#(= ~x_0~0 0), 29#L80true, 35#L53-3true, 135#(and (= ~x_0~0 0) (= ~x_1~0 0)), 46#L49true, 66#L63-3true, 129#true, 68#L92-4true, Black: 139#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 150#(= ~x_1~0 0)]) [2021-10-21 20:16:07,741 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-10-21 20:16:07,741 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,741 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-10-21 20:16:07,742 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-10-21 20:16:07,762 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([315] L75-->L76: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][97], [Black: 141#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), Black: 135#(and (= ~x_0~0 0) (= ~x_1~0 0)), 132#true, Black: 134#(= ~x_0~0 0), 83#L76true, 35#L53-3true, 70#L43-1true, 148#true, 66#L63-3true, 129#true, 68#L92-4true, Black: 139#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0))]) [2021-10-21 20:16:07,762 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-10-21 20:16:07,762 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,763 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-10-21 20:16:07,763 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-10-21 20:16:07,763 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([311] L74-4-->L80: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][100], [Black: 141#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), Black: 135#(and (= ~x_0~0 0) (= ~x_1~0 0)), 132#true, Black: 134#(= ~x_0~0 0), 29#L80true, 35#L53-3true, 70#L43-1true, 66#L63-3true, 129#true, 68#L92-4true, Black: 139#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 150#(= ~x_1~0 0)]) [2021-10-21 20:16:07,763 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-10-21 20:16:07,764 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-10-21 20:16:07,764 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-10-21 20:16:07,764 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,815 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([315] L75-->L76: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][97], [Black: 141#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), Black: 135#(and (= ~x_0~0 0) (= ~x_1~0 0)), Black: 134#(= ~x_0~0 0), 132#true, 83#L76true, 35#L53-3true, 148#true, 66#L63-3true, 129#true, 48#L45true, 68#L92-4true, Black: 139#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0))]) [2021-10-21 20:16:07,816 INFO L384 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,816 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,816 INFO L387 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2021-10-21 20:16:07,816 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2021-10-21 20:16:07,817 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([311] L74-4-->L80: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][100], [Black: 141#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), Black: 135#(and (= ~x_0~0 0) (= ~x_1~0 0)), Black: 134#(= ~x_0~0 0), 132#true, 29#L80true, 35#L53-3true, 66#L63-3true, 129#true, 48#L45true, 68#L92-4true, Black: 139#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 150#(= ~x_1~0 0)]) [2021-10-21 20:16:07,817 INFO L384 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2021-10-21 20:16:07,817 INFO L387 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2021-10-21 20:16:07,817 INFO L387 tUnfolder$Statistics]: existing Event has 55 ancestors and is cut-off event [2021-10-21 20:16:07,817 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-10-21 20:16:08,071 INFO L129 PetriNetUnfolder]: 994/2310 cut-off events. [2021-10-21 20:16:08,072 INFO L130 PetriNetUnfolder]: For 992/1843 co-relation queries the response was YES. [2021-10-21 20:16:08,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4738 conditions, 2310 events. 994/2310 cut-off events. For 992/1843 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17603 event pairs, 247 based on Foata normal form. 3/2114 useless extension candidates. Maximal degree in co-relation 4730. Up to 758 conditions per place. [2021-10-21 20:16:08,089 INFO L132 encePairwiseOnDemand]: 109/122 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2021-10-21 20:16:08,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 144 transitions, 570 flow [2021-10-21 20:16:08,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:16:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-21 20:16:08,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 608 transitions. [2021-10-21 20:16:08,093 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8306010928961749 [2021-10-21 20:16:08,093 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 608 transitions. [2021-10-21 20:16:08,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 608 transitions. [2021-10-21 20:16:08,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:16:08,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 608 transitions. [2021-10-21 20:16:08,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 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) [2021-10-21 20:16:08,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2021-10-21 20:16:08,100 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2021-10-21 20:16:08,100 INFO L186 Difference]: Start difference. First operand has 112 places, 110 transitions, 302 flow. Second operand 6 states and 608 transitions. [2021-10-21 20:16:08,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 144 transitions, 570 flow [2021-10-21 20:16:08,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 144 transitions, 568 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-10-21 20:16:08,111 INFO L242 Difference]: Finished difference. Result has 112 places, 0 transitions, 0 flow [2021-10-21 20:16:08,111 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=112, PETRI_TRANSITIONS=0} [2021-10-21 20:16:08,111 INFO L334 CegarLoopForPetriNet]: 110 programPoint places, 2 predicate places. [2021-10-21 20:16:08,112 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 0 transitions, 0 flow [2021-10-21 20:16:08,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.0) internal successors, (570), 6 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) [2021-10-21 20:16:08,115 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:16:08,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-21 20:16:08,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-21 20:16:08,116 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-21 20:16:08,117 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-21 20:16:08,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:16:08,123 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-21 20:16:08,123 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:16:08,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:16:08 BasicIcfg [2021-10-21 20:16:08,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:16:08,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:16:08,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:16:08,130 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:16:08,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:16:05" (3/4) ... [2021-10-21 20:16:08,134 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:16:08,141 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-21 20:16:08,141 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-21 20:16:08,142 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-21 20:16:08,142 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-10-21 20:16:08,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-21 20:16:08,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 20:16:08,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:16:08,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:16:08,217 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:16:08,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:16:08,219 INFO L168 Benchmark]: Toolchain (without parser) took 3719.37 ms. Allocated memory was 134.2 MB in the beginning and 174.1 MB in the end (delta: 39.8 MB). Free memory was 102.2 MB in the beginning and 86.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:16:08,220 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:16:08,221 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.57 ms. Allocated memory is still 134.2 MB. Free memory was 102.2 MB in the beginning and 108.6 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:16:08,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 106.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:16:08,222 INFO L168 Benchmark]: Boogie Preprocessor took 30.74 ms. Allocated memory is still 134.2 MB. Free memory was 106.9 MB in the beginning and 105.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:16:08,222 INFO L168 Benchmark]: RCFGBuilder took 502.80 ms. Allocated memory is still 134.2 MB. Free memory was 105.5 MB in the beginning and 92.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:16:08,227 INFO L168 Benchmark]: TraceAbstraction took 2747.56 ms. Allocated memory was 134.2 MB in the beginning and 174.1 MB in the end (delta: 39.8 MB). Free memory was 92.3 MB in the beginning and 89.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 44.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:16:08,228 INFO L168 Benchmark]: Witness Printer took 88.42 ms. Allocated memory is still 174.1 MB. Free memory was 89.3 MB in the beginning and 86.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:16:08,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 96.5 MB. Free memory is still 50.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.57 ms. Allocated memory is still 134.2 MB. Free memory was 102.2 MB in the beginning and 108.6 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 106.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.74 ms. Allocated memory is still 134.2 MB. Free memory was 106.9 MB in the beginning and 105.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 502.80 ms. Allocated memory is still 134.2 MB. Free memory was 105.5 MB in the beginning and 92.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2747.56 ms. Allocated memory was 134.2 MB in the beginning and 174.1 MB in the end (delta: 39.8 MB). Free memory was 92.3 MB in the beginning and 89.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 44.5 MB. Max. memory is 16.1 GB. * Witness Printer took 88.42 ms. Allocated memory is still 174.1 MB. Free memory was 89.3 MB in the beginning and 86.1 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 99]: 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 9 procedures, 158 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 71.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2575.2ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1357.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 143.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 25 SDslu, 153 SDs, 0 SdLazy, 172 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 167.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 108.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.6ms SsaConstructionTime, 319.1ms SatisfiabilityAnalysisTime, 460.4ms InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-21 20:16:08,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7105ffc6-b52e-4a6d-ada1-8d96ec702207/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...