./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y --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 b19a6e04371a9a0685451c11d77cc5cbe303ff20f81dbf1823f637698e7ac819 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:42:50,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:42:50,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:42:50,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:42:50,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:42:50,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:42:50,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:42:50,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:42:50,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:42:50,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:42:50,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:42:50,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:42:50,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:42:50,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:42:50,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:42:50,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:42:50,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:42:50,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:42:50,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:42:50,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:42:50,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:42:50,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:42:50,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:42:50,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:42:50,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:42:50,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:42:50,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:42:50,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:42:50,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:42:50,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:42:50,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:42:50,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:42:50,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:42:50,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:42:50,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:42:50,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:42:50,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:42:50,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:42:50,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:42:50,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:42:50,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:42:50,558 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:42:50,588 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:42:50,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:42:50,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:42:50,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:42:50,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:42:50,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:42:50,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:42:50,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:42:50,592 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:42:50,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:42:50,593 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:42:50,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:42:50,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:42:50,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:42:50,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:42:50,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:42:50,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:42:50,595 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:42:50,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:42:50,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:42:50,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:42:50,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:42:50,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:42:50,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:42:50,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:42:50,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:42:50,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:42:50,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:42:50,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:42:50,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:42:50,599 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:42:50,599 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:42:50,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:42:50,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:42:50,600 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_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b19a6e04371a9a0685451c11d77cc5cbe303ff20f81dbf1823f637698e7ac819 [2021-11-13 18:42:50,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:42:50,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:42:50,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:42:50,902 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:42:50,903 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:42:50,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/eca-programs/Problem102_label12.c [2021-11-13 18:42:51,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/data/8902e8f8f/865a9acc086c4a0788fd4f597533b610/FLAG99d1e16c5 [2021-11-13 18:42:55,408 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:42:55,409 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/sv-benchmarks/c/eca-programs/Problem102_label12.c [2021-11-13 18:42:55,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/data/8902e8f8f/865a9acc086c4a0788fd4f597533b610/FLAG99d1e16c5 [2021-11-13 18:42:55,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/data/8902e8f8f/865a9acc086c4a0788fd4f597533b610 [2021-11-13 18:42:55,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:42:55,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:42:55,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:42:55,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:42:55,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:42:55,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:42:55" (1/1) ... [2021-11-13 18:42:55,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ab8250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:42:55, skipping insertion in model container [2021-11-13 18:42:55,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:42:55" (1/1) ... [2021-11-13 18:42:55,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:42:57,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:43:28,594 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_3dea28db-4891-4031-87df-d0f6def27987/sv-benchmarks/c/eca-programs/Problem102_label12.c[5712898,5712911] [2021-11-13 18:43:28,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:43:28,772 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:43:44,899 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_3dea28db-4891-4031-87df-d0f6def27987/sv-benchmarks/c/eca-programs/Problem102_label12.c[5712898,5712911] [2021-11-13 18:43:44,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:43:51,269 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:43:51,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51 WrapperNode [2021-11-13 18:43:51,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:43:51,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:43:51,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:43:51,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:43:51,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:43:53,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:43:58,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:43:58,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:43:58,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:43:58,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:43:58,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:43:58,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:44:00,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:44:00,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:44:02,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:44:03,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:44:03,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:44:05,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:44:05,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:44:05,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:44:05,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:44:05,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (1/1) ... [2021-11-13 18:44:05,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:44:05,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:44:05,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:44:05,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3dea28db-4891-4031-87df-d0f6def27987/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:44:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:44:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:44:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:44:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:45:28,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:45:28,423 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:45:28,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:28 BoogieIcfgContainer [2021-11-13 18:45:28,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:45:28,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:45:28,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:45:28,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:45:28,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:42:55" (1/3) ... [2021-11-13 18:45:28,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a55ea4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:45:28, skipping insertion in model container [2021-11-13 18:45:28,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:43:51" (2/3) ... [2021-11-13 18:45:28,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a55ea4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:45:28, skipping insertion in model container [2021-11-13 18:45:28,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:28" (3/3) ... [2021-11-13 18:45:28,468 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem102_label12.c [2021-11-13 18:45:28,482 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:45:28,483 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:45:28,644 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:45:28,658 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 [2021-11-13 18:45:28,659 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:45:29,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 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) [2021-11-13 18:45:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17896 [2021-11-13 18:45:32,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:45:32,423 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:45:32,432 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:45:32,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:32,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1511563610, now seen corresponding path program 1 times [2021-11-13 18:45:32,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:32,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332659394] [2021-11-13 18:45:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:32,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms