./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ed93fbea5c4ce7662a30833852408f6a41bed2c847c0002d827dceaca299880 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:24:24,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:24:24,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:24:24,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:24:24,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:24:24,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:24:24,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:24:24,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:24:24,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:24:24,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:24:24,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:24:24,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:24:24,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:24:24,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:24:24,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:24:24,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:24:24,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:24:24,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:24:24,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:24:24,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:24:24,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:24:24,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:24:24,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:24:24,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:24:24,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:24:24,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:24:24,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:24:24,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:24:24,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:24:24,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:24:24,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:24:24,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:24:24,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:24:24,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:24:24,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:24:24,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:24:24,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:24:24,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:24:24,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:24:24,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:24:24,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:24:24,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:24:24,626 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:24:24,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:24:24,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:24:24,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:24:24,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:24:24,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:24:24,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:24:24,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:24:24,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:24:24,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:24:24,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:24:24,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:24:24,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:24:24,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:24:24,640 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:24:24,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:24:24,641 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:24:24,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:24:24,641 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:24:24,642 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:24:24,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:24:24,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:24:24,642 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:24:24,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:24:24,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:24:24,643 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:24:24,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:24:24,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:24:24,644 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_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ed93fbea5c4ce7662a30833852408f6a41bed2c847c0002d827dceaca299880 [2021-11-23 00:24:24,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:24:25,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:24:25,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:24:25,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:24:25,012 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:24:25,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem11_label55.c [2021-11-23 00:24:25,101 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/data/f4984331c/2571f7ab2cf34848ad6f8c9a1f1acaf3/FLAGc042eaf2e [2021-11-23 00:24:25,861 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:24:25,862 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/sv-benchmarks/c/eca-rers2012/Problem11_label55.c [2021-11-23 00:24:25,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/data/f4984331c/2571f7ab2cf34848ad6f8c9a1f1acaf3/FLAGc042eaf2e [2021-11-23 00:24:26,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/data/f4984331c/2571f7ab2cf34848ad6f8c9a1f1acaf3 [2021-11-23 00:24:26,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:24:26,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:24:26,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:24:26,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:24:26,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:24:26,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:26,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c5221f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26, skipping insertion in model container [2021-11-23 00:24:26,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:26,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:24:26,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:24:26,381 WARN L230 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_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/sv-benchmarks/c/eca-rers2012/Problem11_label55.c[6546,6559] [2021-11-23 00:24:26,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:24:26,678 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:24:26,707 WARN L230 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_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/sv-benchmarks/c/eca-rers2012/Problem11_label55.c[6546,6559] [2021-11-23 00:24:26,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:24:26,895 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:24:26,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26 WrapperNode [2021-11-23 00:24:26,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:24:26,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:24:26,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:24:26,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:24:26,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:26,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,099 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-11-23 00:24:27,100 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:24:27,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:24:27,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:24:27,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:24:27,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:24:27,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:24:27,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:24:27,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:24:27,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:26" (1/1) ... [2021-11-23 00:24:27,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:24:27,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:24:27,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:24:27,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9a0b2a3-eb61-47b6-8309-d21abb1921ee/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:24:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:24:27,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:24:27,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:24:27,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:24:27,376 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:24:27,378 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:24:29,301 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:24:34,733 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:24:34,734 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:24:34,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:34 BoogieIcfgContainer [2021-11-23 00:24:34,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:24:34,738 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:24:34,738 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:24:34,749 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:24:34,749 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:34" (1/1) ... [2021-11-23 00:24:34,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:24:34,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 00:24:34,822 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 00:24:34,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:24:34,825 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:34,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:35,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:24:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 00:24:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 00:24:35,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:24:35,186 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:35,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:35,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:24:46,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:24:47,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:47,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-11-23 00:24:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-11-23 00:24:47,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:24:47,607 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:47,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:24:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:24:52,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:24:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 30 states and 52 transitions. [2021-11-23 00:24:52,117 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2021-11-23 00:24:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:24:52,118 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:24:52,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:24:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:03,368 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:25:11,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:12,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:22,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 45 states and 91 transitions. [2021-11-23 00:25:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 91 transitions. [2021-11-23 00:25:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:25:23,353 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:23,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:25:34,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:34,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 52 states and 111 transitions. [2021-11-23 00:25:34,045 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 111 transitions. [2021-11-23 00:25:34,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:25:34,046 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:34,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:40,715 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:25:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:41,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 55 states and 118 transitions. [2021-11-23 00:25:41,344 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 118 transitions. [2021-11-23 00:25:41,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:25:41,346 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:41,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:25:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:25:54,341 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:25:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:25:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 59 states and 136 transitions. [2021-11-23 00:25:54,464 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 136 transitions. [2021-11-23 00:25:54,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:25:54,465 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:25:54,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:25:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:26:11,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:23,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:33,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:34,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:34,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 70 states and 169 transitions. [2021-11-23 00:26:34,428 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 169 transitions. [2021-11-23 00:26:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:26:34,430 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:34,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:26:50,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:26:52,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:52,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 76 states and 182 transitions. [2021-11-23 00:26:52,232 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 182 transitions. [2021-11-23 00:26:52,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 00:26:52,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:52,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:26:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:26:56,993 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:26:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:26:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 79 states and 187 transitions. [2021-11-23 00:26:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 187 transitions. [2021-11-23 00:26:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 00:26:58,515 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:26:58,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:27:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat