./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem17_label41.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_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/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_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem17_label41.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/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_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/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 f21db4ac76946ee444b77ff65c558a63b1f97c46b1265b72698e02c79e47e23e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:57:22,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:57:22,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:57:22,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:57:22,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:57:22,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:57:22,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:57:22,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:57:22,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:57:22,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:57:22,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:57:22,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:57:22,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:57:22,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:57:22,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:57:22,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:57:22,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:57:22,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:57:22,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:57:22,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:57:22,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:57:22,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:57:22,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:57:22,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:57:22,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:57:22,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:57:22,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:57:22,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:57:22,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:57:22,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:57:22,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:57:22,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:57:22,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:57:22,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:57:22,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:57:22,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:57:22,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:57:22,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:57:22,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:57:22,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:57:22,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:57:22,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:57:22,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:57:22,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:57:22,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:57:22,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:57:22,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:57:22,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:57:22,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:57:22,882 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:57:22,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:57:22,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:57:22,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:57:22,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:57:22,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:57:22,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:57:22,883 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:57:22,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:57:22,883 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:57:22,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:57:22,884 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:57:22,884 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:57:22,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:57:22,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:57:22,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:57:22,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:57:22,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:57:22,885 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:57:22,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:57:22,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:57:22,886 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_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f21db4ac76946ee444b77ff65c558a63b1f97c46b1265b72698e02c79e47e23e [2021-11-23 00:57:23,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:57:23,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:57:23,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:57:23,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:57:23,188 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:57:23,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem17_label41.c [2021-11-23 00:57:23,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/data/a4ce0d032/abe88ed639634cf2a86ed8f4273ed842/FLAGa7d5b8b80 [2021-11-23 00:57:23,971 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:57:23,974 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/sv-benchmarks/c/eca-rers2012/Problem17_label41.c [2021-11-23 00:57:24,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/data/a4ce0d032/abe88ed639634cf2a86ed8f4273ed842/FLAGa7d5b8b80 [2021-11-23 00:57:24,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/data/a4ce0d032/abe88ed639634cf2a86ed8f4273ed842 [2021-11-23 00:57:24,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:57:24,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:57:24,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:57:24,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:57:24,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:57:24,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:57:24" (1/1) ... [2021-11-23 00:57:24,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278b4cdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:24, skipping insertion in model container [2021-11-23 00:57:24,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:57:24" (1/1) ... [2021-11-23 00:57:24,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:57:24,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:57:24,493 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_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/sv-benchmarks/c/eca-rers2012/Problem17_label41.c[5202,5215] [2021-11-23 00:57:25,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:57:25,333 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:57:25,371 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_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/sv-benchmarks/c/eca-rers2012/Problem17_label41.c[5202,5215] [2021-11-23 00:57:25,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:57:25,796 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:57:25,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25 WrapperNode [2021-11-23 00:57:25,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:57:25,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:57:25,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:57:25,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:57:25,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:25,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,258 INFO L137 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2611 [2021-11-23 00:57:26,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:57:26,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:57:26,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:57:26,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:57:26,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:57:26,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:57:26,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:57:26,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:57:26,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:57:25" (1/1) ... [2021-11-23 00:57:26,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:57:26,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:57:26,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:57:26,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a4bcb98-c867-4aba-a7a8-90b8eecdd80b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:57:26,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:57:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:57:26,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:57:26,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:57:26,982 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:57:26,983 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:57:31,054 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:58:12,521 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:58:12,521 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:58:12,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:12 BoogieIcfgContainer [2021-11-23 00:58:12,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:58:12,525 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:58:12,525 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:58:12,546 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:58:12,547 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:12" (1/1) ... [2021-11-23 00:58:12,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:58:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:12,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 00:58:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 00:58:12,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 00:58:12,617 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:12,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:58:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:58:12,873 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 00:58:14,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:58:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:14,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 00:58:14,140 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 00:58:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:58:14,140 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:14,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:58:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:58:22,067 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 00:58:24,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-11-23 00:58:24,613 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-11-23 00:58:24,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 00:58:24,615 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:24,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:58:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:58:38,501 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 00:58:50,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:58:53,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:58:55,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:58:57,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:58:59,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:58:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 30 states and 51 transitions. [2021-11-23 00:58:59,880 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 51 transitions. [2021-11-23 00:58:59,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:58:59,881 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:58:59,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:59:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:59:30,503 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 00:59:36,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:59:42,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:59:45,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 00:59:58,213 WARN L534 Checker$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 00:59:59,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 01:00:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:00:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 41 states and 89 transitions. [2021-11-23 01:00:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 89 transitions. [2021-11-23 01:00:00,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:00:00,669 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:00:00,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms