./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc --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 26e745e5a6378d1005b5b65d8cf35b442871742f5efbed2506d4a18acf4ab9a5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:26:35,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:26:35,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:26:35,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:26:35,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:26:35,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:26:35,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:26:35,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:26:35,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:26:35,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:26:35,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:26:35,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:26:35,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:26:35,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:26:35,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:26:35,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:26:35,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:26:35,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:26:35,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:26:35,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:26:35,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:26:35,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:26:35,922 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:26:35,923 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:26:35,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:26:35,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:26:35,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:26:35,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:26:35,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:26:35,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:26:35,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:26:35,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:26:35,932 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:26:35,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:26:35,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:26:35,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:26:35,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:26:35,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:26:35,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:26:35,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:26:35,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:26:35,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:26:35,980 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:26:35,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:26:35,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:26:35,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:26:35,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:26:35,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:26:35,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:26:35,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:26:35,985 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:26:35,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:26:35,986 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:26:35,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:26:35,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:26:35,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:26:35,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:26:35,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:26:35,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:26:35,987 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:26:35,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:26:35,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:26:35,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:26:35,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:26:35,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:26:35,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:26:35,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:26:35,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:26:35,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:26:35,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:26:35,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:26:35,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:26:35,991 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:26:35,991 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:26:35,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:26:35,991 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26e745e5a6378d1005b5b65d8cf35b442871742f5efbed2506d4a18acf4ab9a5 [2022-11-02 20:26:36,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:26:36,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:26:36,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:26:36,334 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:26:36,335 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:26:36,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/forester-heap/dll-token-1.i [2022-11-02 20:26:36,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data/7813ba21a/8ab6f77f24c94819b1b4f2e3ddf18227/FLAG19020c246 [2022-11-02 20:26:36,983 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:26:36,983 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i [2022-11-02 20:26:36,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data/7813ba21a/8ab6f77f24c94819b1b4f2e3ddf18227/FLAG19020c246 [2022-11-02 20:26:37,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data/7813ba21a/8ab6f77f24c94819b1b4f2e3ddf18227 [2022-11-02 20:26:37,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:26:37,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:26:37,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:26:37,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:26:37,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:26:37,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58315783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37, skipping insertion in model container [2022-11-02 20:26:37,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:26:37,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:26:37,714 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22229,22242] [2022-11-02 20:26:37,729 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22398,22411] [2022-11-02 20:26:37,731 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22489,22502] [2022-11-02 20:26:37,734 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22571,22584] [2022-11-02 20:26:37,736 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22649,22662] [2022-11-02 20:26:37,738 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22795,22808] [2022-11-02 20:26:37,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:26:37,749 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:26:37,780 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22229,22242] [2022-11-02 20:26:37,782 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22398,22411] [2022-11-02 20:26:37,783 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22489,22502] [2022-11-02 20:26:37,784 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22571,22584] [2022-11-02 20:26:37,785 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22649,22662] [2022-11-02 20:26:37,786 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22795,22808] [2022-11-02 20:26:37,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:26:37,811 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:26:37,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37 WrapperNode [2022-11-02 20:26:37,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:26:37,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:26:37,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:26:37,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:26:37,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,853 INFO L138 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2022-11-02 20:26:37,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:26:37,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:26:37,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:26:37,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:26:37,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:26:37,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:26:37,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:26:37,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:26:37,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (1/1) ... [2022-11-02 20:26:37,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:26:37,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:26:37,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:26:37,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:26:37,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:26:37,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:26:37,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:26:37,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:26:37,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:26:37,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:26:37,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:26:37,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:26:37,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:26:37,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:26:38,128 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:26:38,130 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:26:38,382 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:26:38,389 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:26:38,389 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-11-02 20:26:38,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:26:38 BoogieIcfgContainer [2022-11-02 20:26:38,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:26:38,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:26:38,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:26:38,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:26:38,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:26:37" (1/3) ... [2022-11-02 20:26:38,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b325bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:26:38, skipping insertion in model container [2022-11-02 20:26:38,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:37" (2/3) ... [2022-11-02 20:26:38,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b325bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:26:38, skipping insertion in model container [2022-11-02 20:26:38,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:26:38" (3/3) ... [2022-11-02 20:26:38,402 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-token-1.i [2022-11-02 20:26:38,418 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:26:38,418 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-02 20:26:38,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:26:38,473 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19d51e52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:26:38,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-02 20:26:38,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 37 states have (on average 1.8108108108108107) internal successors, (67), 43 states have internal predecessors, (67), 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) [2022-11-02 20:26:38,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:26:38,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:38,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:26:38,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:38,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:38,498 INFO L85 PathProgramCache]: Analyzing trace with hash 890337990, now seen corresponding path program 1 times [2022-11-02 20:26:38,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:38,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737524749] [2022-11-02 20:26:38,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:38,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:38,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:38,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:38,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737524749] [2022-11-02 20:26:38,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737524749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:38,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:38,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:38,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747954097] [2022-11-02 20:26:38,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:38,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:26:38,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:38,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:26:38,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:26:38,948 INFO L87 Difference]: Start difference. First operand has 44 states, 37 states have (on average 1.8108108108108107) internal successors, (67), 43 states have internal predecessors, (67), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-02 20:26:38,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:38,974 INFO L93 Difference]: Finished difference Result 86 states and 132 transitions. [2022-11-02 20:26:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:26:38,977 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2022-11-02 20:26:38,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:38,986 INFO L225 Difference]: With dead ends: 86 [2022-11-02 20:26:38,986 INFO L226 Difference]: Without dead ends: 39 [2022-11-02 20:26:38,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:26:38,993 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:38,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:26:39,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-02 20:26:39,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-02 20:26:39,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 38 states have internal predecessors, (41), 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) [2022-11-02 20:26:39,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-11-02 20:26:39,044 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 6 [2022-11-02 20:26:39,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:39,045 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-11-02 20:26:39,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-02 20:26:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-11-02 20:26:39,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:26:39,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:39,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:26:39,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:26:39,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:39,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:39,048 INFO L85 PathProgramCache]: Analyzing trace with hash 889571369, now seen corresponding path program 1 times [2022-11-02 20:26:39,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:39,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020750965] [2022-11-02 20:26:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:39,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:39,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:39,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:39,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020750965] [2022-11-02 20:26:39,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020750965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:39,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:39,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:26:39,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537423404] [2022-11-02 20:26:39,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:39,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:26:39,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:39,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:26:39,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:26:39,794 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-02 20:26:39,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:39,937 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-11-02 20:26:39,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:39,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2022-11-02 20:26:39,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:39,938 INFO L225 Difference]: With dead ends: 39 [2022-11-02 20:26:39,939 INFO L226 Difference]: Without dead ends: 37 [2022-11-02 20:26:39,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:26:39,940 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:39,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 75 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:26:39,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-02 20:26:39,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-02 20:26:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.21875) internal successors, (39), 36 states have internal predecessors, (39), 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) [2022-11-02 20:26:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-11-02 20:26:39,949 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 6 [2022-11-02 20:26:39,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:39,955 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-11-02 20:26:39,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-02 20:26:39,956 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-11-02 20:26:39,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-02 20:26:39,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:39,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:39,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:26:39,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:39,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:39,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1806865149, now seen corresponding path program 1 times [2022-11-02 20:26:39,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:39,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877681595] [2022-11-02 20:26:39,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:39,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:40,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:40,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877681595] [2022-11-02 20:26:40,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877681595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:40,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:40,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:26:40,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539785466] [2022-11-02 20:26:40,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:40,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:26:40,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:40,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:26:40,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:26:40,166 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-02 20:26:40,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:40,262 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2022-11-02 20:26:40,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:26:40,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2022-11-02 20:26:40,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:40,264 INFO L225 Difference]: With dead ends: 63 [2022-11-02 20:26:40,264 INFO L226 Difference]: Without dead ends: 61 [2022-11-02 20:26:40,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:26:40,266 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 72 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:40,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 48 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:26:40,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-02 20:26:40,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 35. [2022-11-02 20:26:40,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 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) [2022-11-02 20:26:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-11-02 20:26:40,273 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2022-11-02 20:26:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:40,273 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-11-02 20:26:40,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-02 20:26:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-11-02 20:26:40,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-02 20:26:40,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:40,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:40,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:26:40,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:40,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash -913382283, now seen corresponding path program 1 times [2022-11-02 20:26:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:40,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498541728] [2022-11-02 20:26:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:40,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:40,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:40,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:40,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498541728] [2022-11-02 20:26:40,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498541728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:40,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:40,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:26:40,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680572650] [2022-11-02 20:26:40,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:40,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:26:40,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:40,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:26:40,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:26:40,412 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-02 20:26:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:40,502 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-02 20:26:40,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:26:40,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) Word has length 12 [2022-11-02 20:26:40,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:40,503 INFO L225 Difference]: With dead ends: 35 [2022-11-02 20:26:40,503 INFO L226 Difference]: Without dead ends: 33 [2022-11-02 20:26:40,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:26:40,505 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 2 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:40,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 90 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:26:40,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-02 20:26:40,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-02 20:26:40,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 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) [2022-11-02 20:26:40,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-02 20:26:40,512 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 12 [2022-11-02 20:26:40,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:40,512 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-02 20:26:40,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-02 20:26:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-02 20:26:40,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-02 20:26:40,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:40,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:40,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:26:40,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:40,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:40,515 INFO L85 PathProgramCache]: Analyzing trace with hash -913344547, now seen corresponding path program 1 times [2022-11-02 20:26:40,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:40,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955076673] [2022-11-02 20:26:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:40,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:41,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:41,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955076673] [2022-11-02 20:26:41,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955076673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:41,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:41,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:26:41,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568811419] [2022-11-02 20:26:41,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:41,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:26:41,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:41,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:26:41,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:26:41,634 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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) [2022-11-02 20:26:41,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:41,964 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-11-02 20:26:41,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:26:41,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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) Word has length 12 [2022-11-02 20:26:41,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:41,966 INFO L225 Difference]: With dead ends: 50 [2022-11-02 20:26:41,966 INFO L226 Difference]: Without dead ends: 48 [2022-11-02 20:26:41,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-02 20:26:41,967 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:41,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 93 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:26:41,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-02 20:26:41,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-02 20:26:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 41 states have internal predecessors, (46), 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) [2022-11-02 20:26:41,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-02 20:26:41,977 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 12 [2022-11-02 20:26:41,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:41,978 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-02 20:26:41,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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) [2022-11-02 20:26:41,978 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-02 20:26:41,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-02 20:26:41,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:41,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:41,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:26:41,980 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:41,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:41,980 INFO L85 PathProgramCache]: Analyzing trace with hash -313255267, now seen corresponding path program 1 times [2022-11-02 20:26:41,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:41,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121306618] [2022-11-02 20:26:41,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:41,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:44,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:44,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:44,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121306618] [2022-11-02 20:26:44,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121306618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:44,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:44,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:26:44,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930756297] [2022-11-02 20:26:44,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:44,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:26:44,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:44,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:26:44,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:26:44,206 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-11-02 20:26:44,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:44,386 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2022-11-02 20:26:44,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:26:44,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) Word has length 16 [2022-11-02 20:26:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:44,388 INFO L225 Difference]: With dead ends: 66 [2022-11-02 20:26:44,388 INFO L226 Difference]: Without dead ends: 64 [2022-11-02 20:26:44,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:26:44,389 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 28 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:44,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 135 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:26:44,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-02 20:26:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2022-11-02 20:26:44,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 47 states have internal predecessors, (52), 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) [2022-11-02 20:26:44,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-11-02 20:26:44,400 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 16 [2022-11-02 20:26:44,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:44,400 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-11-02 20:26:44,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-11-02 20:26:44,401 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-11-02 20:26:44,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-02 20:26:44,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:44,402 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:44,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:26:44,402 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash -648614522, now seen corresponding path program 1 times [2022-11-02 20:26:44,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:44,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265559165] [2022-11-02 20:26:44,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:44,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:45,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:45,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265559165] [2022-11-02 20:26:45,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265559165] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:26:45,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564872306] [2022-11-02 20:26:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:45,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:26:45,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:26:45,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:26:45,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:26:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:45,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-02 20:26:45,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:26:45,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:26:45,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:26:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:46,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2022-11-02 20:26:46,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-11-02 20:26:46,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2022-11-02 20:26:46,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:46,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:46,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:26:46,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-02 20:26:46,108 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-11-02 20:26:46,132 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-02 20:26:46,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-02 20:26:46,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:46,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:46,289 INFO L356 Elim1Store]: treesize reduction 137, result has 7.4 percent of original size [2022-11-02 20:26:46,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 38 [2022-11-02 20:26:46,321 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-02 20:26:46,322 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-02 20:26:46,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 20:26:46,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:46,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:26:46,413 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:26:46,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2022-11-02 20:26:46,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 51 [2022-11-02 20:26:46,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2022-11-02 20:26:46,784 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:26:46,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 113 [2022-11-02 20:26:46,800 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 171 [2022-11-02 20:26:46,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 124 [2022-11-02 20:26:48,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:48,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564872306] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:26:48,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:26:48,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2022-11-02 20:26:48,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238148298] [2022-11-02 20:26:48,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:26:48,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:26:48,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:48,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:26:48,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2022-11-02 20:26:48,215 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-02 20:26:48,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:48,914 INFO L93 Difference]: Finished difference Result 94 states and 105 transitions. [2022-11-02 20:26:48,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:26:48,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) Word has length 16 [2022-11-02 20:26:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:48,920 INFO L225 Difference]: With dead ends: 94 [2022-11-02 20:26:48,920 INFO L226 Difference]: Without dead ends: 92 [2022-11-02 20:26:48,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=176, Unknown=3, NotChecked=0, Total=240 [2022-11-02 20:26:48,922 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 35 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 43 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:48,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 185 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 43 Unchecked, 0.1s Time] [2022-11-02 20:26:48,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-02 20:26:48,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 65. [2022-11-02 20:26:48,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 64 states have internal predecessors, (73), 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) [2022-11-02 20:26:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2022-11-02 20:26:48,946 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 16 [2022-11-02 20:26:48,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:48,946 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2022-11-02 20:26:48,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2022-11-02 20:26:48,947 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2022-11-02 20:26:48,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-02 20:26:48,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:48,948 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:48,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:26:49,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:26:49,168 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:49,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:49,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1909855756, now seen corresponding path program 1 times [2022-11-02 20:26:49,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:49,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730895982] [2022-11-02 20:26:49,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:49,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:49,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:49,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:49,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730895982] [2022-11-02 20:26:49,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730895982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:49,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:49,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:26:49,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894323476] [2022-11-02 20:26:49,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:49,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:26:49,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:49,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:26:49,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:26:49,875 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-11-02 20:26:50,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:50,021 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2022-11-02 20:26:50,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:26:50,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) Word has length 18 [2022-11-02 20:26:50,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:50,024 INFO L225 Difference]: With dead ends: 91 [2022-11-02 20:26:50,024 INFO L226 Difference]: Without dead ends: 65 [2022-11-02 20:26:50,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:26:50,025 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 16 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:50,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 116 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:26:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-02 20:26:50,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-02 20:26:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 62 states have (on average 1.1612903225806452) internal successors, (72), 64 states have internal predecessors, (72), 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) [2022-11-02 20:26:50,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2022-11-02 20:26:50,043 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 18 [2022-11-02 20:26:50,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:50,043 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2022-11-02 20:26:50,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2022-11-02 20:26:50,044 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2022-11-02 20:26:50,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:26:50,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:50,047 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:50,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:26:50,047 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:50,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:50,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1000772550, now seen corresponding path program 1 times [2022-11-02 20:26:50,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:50,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144157435] [2022-11-02 20:26:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:50,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:51,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:51,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:51,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144157435] [2022-11-02 20:26:51,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144157435] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:26:51,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853733613] [2022-11-02 20:26:51,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:51,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:26:51,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:26:51,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:26:51,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:26:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:51,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-02 20:26:51,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:26:51,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:26:51,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:26:51,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:51,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2022-11-02 20:26:51,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:51,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:51,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:26:51,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-02 20:26:51,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-11-02 20:26:51,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2022-11-02 20:26:51,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-11-02 20:26:51,814 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-02 20:26:51,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-02 20:26:51,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:51,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:51,908 INFO L356 Elim1Store]: treesize reduction 137, result has 7.4 percent of original size [2022-11-02 20:26:51,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 38 [2022-11-02 20:26:51,926 INFO L356 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-02 20:26:51,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-02 20:26:51,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 20:26:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:51,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:26:51,981 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:26:51,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-02 20:26:51,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 54 [2022-11-02 20:26:51,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2022-11-02 20:26:52,157 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:26:52,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 138 treesize of output 115 [2022-11-02 20:26:52,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 177 [2022-11-02 20:26:52,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 162 [2022-11-02 20:26:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:52,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853733613] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:26:52,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:26:52,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-02 20:26:52,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094560356] [2022-11-02 20:26:52,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:26:52,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-02 20:26:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:52,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-02 20:26:52,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=83, Unknown=1, NotChecked=0, Total=110 [2022-11-02 20:26:52,486 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2022-11-02 20:26:52,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:52,755 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2022-11-02 20:26:52,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 20:26:52,755 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) Word has length 20 [2022-11-02 20:26:52,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:52,756 INFO L225 Difference]: With dead ends: 99 [2022-11-02 20:26:52,756 INFO L226 Difference]: Without dead ends: 83 [2022-11-02 20:26:52,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=177, Unknown=2, NotChecked=0, Total=240 [2022-11-02 20:26:52,757 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 42 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:52,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 145 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 67 Invalid, 0 Unknown, 54 Unchecked, 0.1s Time] [2022-11-02 20:26:52,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-02 20:26:52,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 70. [2022-11-02 20:26:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 69 states have internal predecessors, (77), 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) [2022-11-02 20:26:52,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2022-11-02 20:26:52,778 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 20 [2022-11-02 20:26:52,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:52,778 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2022-11-02 20:26:52,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2022-11-02 20:26:52,779 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2022-11-02 20:26:52,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:26:52,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:52,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:52,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:26:52,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:26:52,997 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:52,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:52,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1552465966, now seen corresponding path program 1 times [2022-11-02 20:26:52,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:52,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580145108] [2022-11-02 20:26:52,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:52,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:53,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:53,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580145108] [2022-11-02 20:26:53,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580145108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:53,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:53,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:26:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62617812] [2022-11-02 20:26:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:53,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:26:53,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:26:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:26:53,091 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-11-02 20:26:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:26:53,164 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2022-11-02 20:26:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:26:53,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) Word has length 22 [2022-11-02 20:26:53,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:26:53,165 INFO L225 Difference]: With dead ends: 70 [2022-11-02 20:26:53,165 INFO L226 Difference]: Without dead ends: 51 [2022-11-02 20:26:53,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:26:53,167 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:26:53,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 91 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:26:53,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-02 20:26:53,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-02 20:26:53,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 50 states have internal predecessors, (56), 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) [2022-11-02 20:26:53,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-11-02 20:26:53,180 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 22 [2022-11-02 20:26:53,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:26:53,180 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-11-02 20:26:53,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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) [2022-11-02 20:26:53,181 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-11-02 20:26:53,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-02 20:26:53,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:26:53,183 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:53,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:26:53,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:26:53,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:53,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1970202869, now seen corresponding path program 1 times [2022-11-02 20:26:53,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:53,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053157014] [2022-11-02 20:26:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:53,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:56,059 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:56,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:56,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053157014] [2022-11-02 20:26:56,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053157014] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:26:56,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579214164] [2022-11-02 20:26:56,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:56,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:26:56,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:26:56,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:26:56,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:26:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:56,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 88 conjunts are in the unsatisfiable core [2022-11-02 20:26:56,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:26:56,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-02 20:26:56,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2022-11-02 20:26:56,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2022-11-02 20:26:56,404 INFO L356 Elim1Store]: treesize reduction 50, result has 9.1 percent of original size [2022-11-02 20:26:56,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 78 [2022-11-02 20:26:56,529 INFO L356 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2022-11-02 20:26:56,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2022-11-02 20:26:56,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:56,566 INFO L356 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-02 20:26:56,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 42 [2022-11-02 20:26:56,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:26:56,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:26:56,788 INFO L356 Elim1Store]: treesize reduction 106, result has 32.1 percent of original size [2022-11-02 20:26:56,790 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-02 20:26:56,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:26:56,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-02 20:26:56,991 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_42| input size 99 context size 99 output size 99 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-02 20:26:56,995 INFO L158 Benchmark]: Toolchain (without parser) took 19695.22ms. Allocated memory was 119.5MB in the beginning and 388.0MB in the end (delta: 268.4MB). Free memory was 85.3MB in the beginning and 236.0MB in the end (delta: -150.7MB). Peak memory consumption was 116.9MB. Max. memory is 16.1GB. [2022-11-02 20:26:56,995 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:26:56,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 509.52ms. Allocated memory is still 119.5MB. Free memory was 85.3MB in the beginning and 87.8MB in the end (delta: -2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:26:56,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.20ms. Allocated memory is still 119.5MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:26:56,996 INFO L158 Benchmark]: Boogie Preprocessor took 32.14ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 84.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:26:56,996 INFO L158 Benchmark]: RCFGBuilder took 504.50ms. Allocated memory is still 119.5MB. Free memory was 84.4MB in the beginning and 66.8MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-02 20:26:56,996 INFO L158 Benchmark]: TraceAbstraction took 18600.58ms. Allocated memory was 119.5MB in the beginning and 388.0MB in the end (delta: 268.4MB). Free memory was 66.2MB in the beginning and 236.0MB in the end (delta: -169.8MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. [2022-11-02 20:26:56,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 509.52ms. Allocated memory is still 119.5MB. Free memory was 85.3MB in the beginning and 87.8MB in the end (delta: -2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.20ms. Allocated memory is still 119.5MB. Free memory was 87.8MB in the beginning and 85.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.14ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 84.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 504.50ms. Allocated memory is still 119.5MB. Free memory was 84.4MB in the beginning and 66.8MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 18600.58ms. Allocated memory was 119.5MB in the beginning and 388.0MB in the end (delta: 268.4MB). Free memory was 66.2MB in the beginning and 236.0MB in the end (delta: -169.8MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_42| input size 99 context size 99 output size 99 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_42| input size 99 context size 99 output size 99: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-02 20:26:57,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc --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 26e745e5a6378d1005b5b65d8cf35b442871742f5efbed2506d4a18acf4ab9a5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:26:59,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:26:59,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:26:59,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:26:59,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:26:59,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:26:59,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:26:59,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:26:59,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:26:59,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:26:59,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:26:59,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:26:59,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:26:59,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:26:59,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:26:59,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:26:59,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:26:59,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:26:59,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:26:59,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:26:59,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:26:59,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:26:59,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:26:59,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:26:59,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:26:59,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:26:59,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:26:59,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:26:59,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:26:59,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:26:59,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:26:59,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:26:59,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:26:59,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:26:59,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:26:59,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:26:59,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:26:59,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:26:59,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:26:59,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:26:59,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:26:59,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-02 20:26:59,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:26:59,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:26:59,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:26:59,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:26:59,539 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:26:59,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:26:59,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:26:59,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:26:59,542 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:26:59,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:26:59,543 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:26:59,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:26:59,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:26:59,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:26:59,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:26:59,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:26:59,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:26:59,545 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:26:59,545 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:26:59,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:26:59,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:26:59,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:26:59,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:26:59,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:26:59,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:26:59,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:26:59,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:26:59,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:26:59,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:26:59,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:26:59,548 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:26:59,548 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:26:59,549 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:26:59,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:26:59,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:26:59,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:26:59,550 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26e745e5a6378d1005b5b65d8cf35b442871742f5efbed2506d4a18acf4ab9a5 [2022-11-02 20:26:59,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:26:59,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:26:59,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:26:59,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:26:59,967 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:26:59,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/forester-heap/dll-token-1.i [2022-11-02 20:27:00,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data/950bc6b6d/03f11a3d5a6745928847ae8f1ad5e9b5/FLAG017b00377 [2022-11-02 20:27:00,690 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:27:00,692 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i [2022-11-02 20:27:00,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data/950bc6b6d/03f11a3d5a6745928847ae8f1ad5e9b5/FLAG017b00377 [2022-11-02 20:27:00,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/data/950bc6b6d/03f11a3d5a6745928847ae8f1ad5e9b5 [2022-11-02 20:27:00,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:27:00,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:27:00,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:27:00,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:27:00,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:27:00,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:27:00" (1/1) ... [2022-11-02 20:27:00,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8f0657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:00, skipping insertion in model container [2022-11-02 20:27:00,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:27:00" (1/1) ... [2022-11-02 20:27:00,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:27:01,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:27:01,348 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22229,22242] [2022-11-02 20:27:01,354 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22398,22411] [2022-11-02 20:27:01,356 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22489,22502] [2022-11-02 20:27:01,357 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22571,22584] [2022-11-02 20:27:01,361 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22649,22662] [2022-11-02 20:27:01,366 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22795,22808] [2022-11-02 20:27:01,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:27:01,382 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:27:01,418 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22229,22242] [2022-11-02 20:27:01,421 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22398,22411] [2022-11-02 20:27:01,422 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22489,22502] [2022-11-02 20:27:01,424 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22571,22584] [2022-11-02 20:27:01,425 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22649,22662] [2022-11-02 20:27:01,427 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_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/sv-benchmarks/c/forester-heap/dll-token-1.i[22795,22808] [2022-11-02 20:27:01,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:27:01,457 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:27:01,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01 WrapperNode [2022-11-02 20:27:01,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:27:01,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:27:01,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:27:01,460 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:27:01,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,506 INFO L138 Inliner]: procedures = 122, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2022-11-02 20:27:01,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:27:01,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:27:01,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:27:01,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:27:01,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:27:01,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:27:01,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:27:01,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:27:01,548 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (1/1) ... [2022-11-02 20:27:01,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:27:01,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:27:01,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:27:01,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:27:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-02 20:27:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:27:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:27:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:27:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:27:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:27:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-02 20:27:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-02 20:27:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:27:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:27:01,807 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:27:01,809 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:27:02,507 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:27:02,513 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:27:02,513 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-11-02 20:27:02,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:27:02 BoogieIcfgContainer [2022-11-02 20:27:02,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:27:02,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:27:02,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:27:02,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:27:02,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:27:00" (1/3) ... [2022-11-02 20:27:02,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ff5d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:27:02, skipping insertion in model container [2022-11-02 20:27:02,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:27:01" (2/3) ... [2022-11-02 20:27:02,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ff5d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:27:02, skipping insertion in model container [2022-11-02 20:27:02,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:27:02" (3/3) ... [2022-11-02 20:27:02,524 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-token-1.i [2022-11-02 20:27:02,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:27:02,542 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-02 20:27:02,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:27:02,597 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b564e28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:27:02,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-02 20:27:02,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 42 states have internal predecessors, (66), 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) [2022-11-02 20:27:02,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-02 20:27:02,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:02,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-02 20:27:02,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:27:02,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:02,614 INFO L85 PathProgramCache]: Analyzing trace with hash 28699849, now seen corresponding path program 1 times [2022-11-02 20:27:02,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:27:02,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719654027] [2022-11-02 20:27:02,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:02,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:27:02,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:27:02,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:27:02,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:27:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:02,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-02 20:27:02,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:02,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-02 20:27:03,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:03,099 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-02 20:27:03,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-02 20:27:03,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:03,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:27:03,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:27:03,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719654027] [2022-11-02 20:27:03,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719654027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:03,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:03,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:27:03,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916264103] [2022-11-02 20:27:03,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:03,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:27:03,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:27:03,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:27:03,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:27:03,179 INFO L87 Difference]: Start difference. First operand has 43 states, 36 states have (on average 1.8333333333333333) internal successors, (66), 42 states have internal predecessors, (66), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-02 20:27:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:04,077 INFO L93 Difference]: Finished difference Result 82 states and 128 transitions. [2022-11-02 20:27:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:27:04,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2022-11-02 20:27:04,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:04,088 INFO L225 Difference]: With dead ends: 82 [2022-11-02 20:27:04,088 INFO L226 Difference]: Without dead ends: 36 [2022-11-02 20:27:04,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:27:04,098 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:04,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 87 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-02 20:27:04,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-02 20:27:04,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-02 20:27:04,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 35 states have internal predecessors, (38), 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) [2022-11-02 20:27:04,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-11-02 20:27:04,142 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 5 [2022-11-02 20:27:04,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:04,143 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-11-02 20:27:04,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-02 20:27:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-11-02 20:27:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-02 20:27:04,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:04,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-02 20:27:04,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:04,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:27:04,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:27:04,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:04,370 INFO L85 PathProgramCache]: Analyzing trace with hash 889651804, now seen corresponding path program 1 times [2022-11-02 20:27:04,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:27:04,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655066786] [2022-11-02 20:27:04,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:04,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:27:04,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:27:04,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:27:04,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:27:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:04,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 20:27:04,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:04,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:04,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:27:04,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:27:04,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655066786] [2022-11-02 20:27:04,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1655066786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:04,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:04,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:27:04,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521686996] [2022-11-02 20:27:04,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:04,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:27:04,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:27:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:27:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:27:04,646 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-02 20:27:04,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:04,859 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2022-11-02 20:27:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:27:04,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2022-11-02 20:27:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:04,861 INFO L225 Difference]: With dead ends: 62 [2022-11-02 20:27:04,861 INFO L226 Difference]: Without dead ends: 60 [2022-11-02 20:27:04,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:27:04,862 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 71 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:04,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 47 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:27:04,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-02 20:27:04,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 34. [2022-11-02 20:27:04,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.2) internal successors, (36), 33 states have internal predecessors, (36), 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) [2022-11-02 20:27:04,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-11-02 20:27:04,871 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 6 [2022-11-02 20:27:04,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:04,872 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-11-02 20:27:04,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-11-02 20:27:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-11-02 20:27:04,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:27:04,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:04,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:04,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:05,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:27:05,095 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:27:05,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:05,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1061836619, now seen corresponding path program 1 times [2022-11-02 20:27:05,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:27:05,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921323344] [2022-11-02 20:27:05,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:05,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:27:05,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:27:05,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:27:05,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:27:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:05,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:27:05,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:05,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-02 20:27:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:05,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:27:05,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:27:05,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921323344] [2022-11-02 20:27:05,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921323344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:05,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:05,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:27:05,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035469331] [2022-11-02 20:27:05,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:05,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:27:05,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:27:05,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:27:05,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:27:05,422 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-02 20:27:05,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:05,809 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-11-02 20:27:05,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:27:05,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) Word has length 11 [2022-11-02 20:27:05,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:05,811 INFO L225 Difference]: With dead ends: 34 [2022-11-02 20:27:05,811 INFO L226 Difference]: Without dead ends: 32 [2022-11-02 20:27:05,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:27:05,812 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 2 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:05,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 86 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 20:27:05,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-02 20:27:05,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-02 20:27:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 31 states have internal predecessors, (34), 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) [2022-11-02 20:27:05,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-11-02 20:27:05,819 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 11 [2022-11-02 20:27:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:05,820 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-11-02 20:27:05,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-02 20:27:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-11-02 20:27:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 20:27:05,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:05,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:05,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:06,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:27:06,022 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:27:06,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:06,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1061798883, now seen corresponding path program 1 times [2022-11-02 20:27:06,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:27:06,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593805556] [2022-11-02 20:27:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:06,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:27:06,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:27:06,025 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:27:06,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:27:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:06,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-02 20:27:06,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:06,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-02 20:27:06,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 54 [2022-11-02 20:27:06,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:06,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:06,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-02 20:27:06,476 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-02 20:27:06,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-11-02 20:27:06,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-02 20:27:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:06,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:27:06,520 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:27:06,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593805556] [2022-11-02 20:27:06,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593805556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:06,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:06,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:27:06,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830041423] [2022-11-02 20:27:06,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:06,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:27:06,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:27:06,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:27:06,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:27:06,523 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-02 20:27:07,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:07,620 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2022-11-02 20:27:07,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:27:07,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) Word has length 11 [2022-11-02 20:27:07,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:07,621 INFO L225 Difference]: With dead ends: 66 [2022-11-02 20:27:07,621 INFO L226 Difference]: Without dead ends: 42 [2022-11-02 20:27:07,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:27:07,623 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 10 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:07,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-02 20:27:07,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-02 20:27:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2022-11-02 20:27:07,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 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) [2022-11-02 20:27:07,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-11-02 20:27:07,632 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 11 [2022-11-02 20:27:07,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:07,633 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-11-02 20:27:07,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2022-11-02 20:27:07,633 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-11-02 20:27:07,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:27:07,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:07,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:07,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:07,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:27:07,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:27:07,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:07,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1843657908, now seen corresponding path program 1 times [2022-11-02 20:27:07,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:27:07,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527384435] [2022-11-02 20:27:07,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:07,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:27:07,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:27:07,853 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:27:07,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:27:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:08,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-02 20:27:08,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:08,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:27:08,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-02 20:27:08,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:08,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2022-11-02 20:27:08,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:08,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:08,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:27:08,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-02 20:27:08,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:08,440 INFO L356 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-02 20:27:08,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-02 20:27:08,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:08,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:08,668 INFO L356 Elim1Store]: treesize reduction 215, result has 4.9 percent of original size [2022-11-02 20:27:08,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 49 [2022-11-02 20:27:08,702 INFO L356 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size [2022-11-02 20:27:08,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-02 20:27:08,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 20:27:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:08,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:27:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:09,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:27:09,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527384435] [2022-11-02 20:27:09,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527384435] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-02 20:27:09,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:27:09,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-11-02 20:27:09,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041459848] [2022-11-02 20:27:09,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:09,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:27:09,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:27:09,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:27:09,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=47, Unknown=3, NotChecked=0, Total=72 [2022-11-02 20:27:09,549 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-02 20:27:10,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:10,733 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-11-02 20:27:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:27:10,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) Word has length 14 [2022-11-02 20:27:10,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:10,735 INFO L225 Difference]: With dead ends: 50 [2022-11-02 20:27:10,735 INFO L226 Difference]: Without dead ends: 48 [2022-11-02 20:27:10,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=74, Unknown=5, NotChecked=0, Total=110 [2022-11-02 20:27:10,736 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:10,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 120 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 24 Unchecked, 1.0s Time] [2022-11-02 20:27:10,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-02 20:27:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-02 20:27:10,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 41 states have internal predecessors, (46), 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) [2022-11-02 20:27:10,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-02 20:27:10,746 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 14 [2022-11-02 20:27:10,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:10,746 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-02 20:27:10,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2022-11-02 20:27:10,747 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-02 20:27:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:27:10,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:10,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:10,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:10,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:27:10,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:27:10,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:10,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1359067491, now seen corresponding path program 1 times [2022-11-02 20:27:10,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:27:10,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537403453] [2022-11-02 20:27:10,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:10,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:27:10,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:27:10,969 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:27:11,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:27:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:11,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-02 20:27:11,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:11,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-02 20:27:11,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:11,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2022-11-02 20:27:11,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:11,451 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2022-11-02 20:27:11,478 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-02 20:27:11,480 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 46 [2022-11-02 20:27:11,514 INFO L356 Elim1Store]: treesize reduction 22, result has 43.6 percent of original size [2022-11-02 20:27:11,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 30 [2022-11-02 20:27:11,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2022-11-02 20:27:11,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-02 20:27:11,556 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-02 20:27:11,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2022-11-02 20:27:11,583 INFO L356 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size [2022-11-02 20:27:11,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 17 [2022-11-02 20:27:11,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-02 20:27:11,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 20:27:11,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-02 20:27:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:11,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:27:11,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:27:11,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537403453] [2022-11-02 20:27:11,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537403453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:11,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:11,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:27:11,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655660694] [2022-11-02 20:27:11,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:11,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:27:11,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:27:11,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:27:11,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:27:11,795 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-02 20:27:12,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:27:12,999 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-11-02 20:27:12,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:27:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) Word has length 15 [2022-11-02 20:27:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:27:13,000 INFO L225 Difference]: With dead ends: 52 [2022-11-02 20:27:13,000 INFO L226 Difference]: Without dead ends: 50 [2022-11-02 20:27:13,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:27:13,001 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 9 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:27:13,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 102 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-02 20:27:13,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-02 20:27:13,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2022-11-02 20:27:13,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 47 states have internal predecessors, (52), 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) [2022-11-02 20:27:13,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-11-02 20:27:13,013 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 15 [2022-11-02 20:27:13,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:27:13,013 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-11-02 20:27:13,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-02 20:27:13,014 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-11-02 20:27:13,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-02 20:27:13,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:27:13,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:13,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:27:13,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:27:13,230 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:27:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:13,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1751391308, now seen corresponding path program 1 times [2022-11-02 20:27:13,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:27:13,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877949414] [2022-11-02 20:27:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:13,231 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:27:13,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:27:13,233 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:27:13,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:27:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:13,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-02 20:27:13,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:27:13,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-02 20:27:13,664 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-02 20:27:13,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:13,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2022-11-02 20:27:13,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:13,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:13,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-02 20:27:13,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-02 20:27:13,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-11-02 20:27:13,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2022-11-02 20:27:13,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-11-02 20:27:13,794 INFO L356 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-02 20:27:13,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-02 20:27:13,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:13,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:13,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:14,281 INFO L356 Elim1Store]: treesize reduction 245, result has 6.8 percent of original size [2022-11-02 20:27:14,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 222 treesize of output 291 [2022-11-02 20:27:14,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 55 [2022-11-02 20:27:14,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:14,437 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-02 20:27:14,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2022-11-02 20:27:14,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:14,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-02 20:27:14,717 INFO L356 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2022-11-02 20:27:14,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 29 [2022-11-02 20:27:14,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:27:14,846 INFO L356 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2022-11-02 20:27:14,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 27 [2022-11-02 20:27:14,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2022-11-02 20:27:15,252 INFO L356 Elim1Store]: treesize reduction 78, result has 16.1 percent of original size [2022-11-02 20:27:15,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 41 [2022-11-02 20:27:30,554 WARN L234 SmtUtils]: Spent 12.99s on a formula simplification. DAG size of input: 86 DAG size of output: 82 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:27:31,380 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:27:31,380 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 858 treesize of output 986 [2022-11-02 20:27:32,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:27:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:32,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:27:32,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 284 [2022-11-02 20:27:32,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 362 treesize of output 354 [2022-11-02 20:27:36,903 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:27:36,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 280 treesize of output 225 [2022-11-02 20:27:36,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 444 treesize of output 344 [2022-11-02 20:27:36,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 337 treesize of output 321 [2022-11-02 20:27:38,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:27:38,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:27:38,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877949414] [2022-11-02 20:27:38,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877949414] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:27:38,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 20:27:38,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-02 20:27:38,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726034313] [2022-11-02 20:27:38,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 20:27:38,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:27:38,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:27:38,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:27:38,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=62, Unknown=5, NotChecked=0, Total=90 [2022-11-02 20:27:38,876 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-11-02 20:27:46,807 WARN L234 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 60 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:28:10,487 WARN L234 SmtUtils]: Spent 23.06s on a formula simplification. DAG size of input: 97 DAG size of output: 92 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-02 20:28:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:28:10,563 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2022-11-02 20:28:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:28:10,565 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) Word has length 18 [2022-11-02 20:28:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:28:10,566 INFO L225 Difference]: With dead ends: 80 [2022-11-02 20:28:10,566 INFO L226 Difference]: Without dead ends: 64 [2022-11-02 20:28:10,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 50.3s TimeCoverageRelationStatistics Valid=40, Invalid=109, Unknown=7, NotChecked=0, Total=156 [2022-11-02 20:28:10,567 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 10 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 50 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-02 20:28:10,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 133 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 50 Unchecked, 2.4s Time] [2022-11-02 20:28:10,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-02 20:28:10,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 59. [2022-11-02 20:28:10,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 58 states have internal predecessors, (65), 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) [2022-11-02 20:28:10,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-11-02 20:28:10,580 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 18 [2022-11-02 20:28:10,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:28:10,581 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-11-02 20:28:10,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 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) [2022-11-02 20:28:10,581 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-11-02 20:28:10,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 20:28:10,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:28:10,582 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:28:10,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:28:10,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:28:10,800 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-02 20:28:10,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:28:10,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1454377661, now seen corresponding path program 1 times [2022-11-02 20:28:10,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:28:10,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717075379] [2022-11-02 20:28:10,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:28:10,801 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:28:10,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:28:10,802 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:28:10,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:28:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:28:11,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 115 conjunts are in the unsatisfiable core [2022-11-02 20:28:11,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:28:11,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-02 20:28:11,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:28:11,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:28:11,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-02 20:28:11,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:28:11,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:28:11,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2022-11-02 20:28:11,337 INFO L356 Elim1Store]: treesize reduction 42, result has 10.6 percent of original size [2022-11-02 20:28:11,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 50 [2022-11-02 20:28:11,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-02 20:28:11,416 INFO L356 Elim1Store]: treesize reduction 14, result has 65.0 percent of original size [2022-11-02 20:28:11,416 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 45 [2022-11-02 20:28:11,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-02 20:28:11,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:28:11,501 INFO L356 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-11-02 20:28:11,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 35 [2022-11-02 20:28:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:28:13,219 INFO L356 Elim1Store]: treesize reduction 101, result has 32.7 percent of original size [2022-11-02 20:28:13,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:28:13,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717075379] [2022-11-02 20:28:13,220 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-02 20:28:13,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:28:13,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:28:13,423 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_$Pointer$.base_39| input size 144 context size 144 output size 144 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-02 20:28:13,433 INFO L158 Benchmark]: Toolchain (without parser) took 72467.82ms. Allocated memory was 52.4MB in the beginning and 98.6MB in the end (delta: 46.1MB). Free memory was 27.5MB in the beginning and 72.0MB in the end (delta: -44.5MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2022-11-02 20:28:13,433 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 52.4MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:28:13,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.93ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.2MB in the beginning and 38.3MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:28:13,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.07ms. Allocated memory is still 62.9MB. Free memory was 38.1MB in the beginning and 36.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:28:13,435 INFO L158 Benchmark]: Boogie Preprocessor took 36.11ms. Allocated memory is still 62.9MB. Free memory was 36.0MB in the beginning and 33.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:28:13,435 INFO L158 Benchmark]: RCFGBuilder took 968.78ms. Allocated memory is still 62.9MB. Free memory was 33.9MB in the beginning and 31.2MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:28:13,436 INFO L158 Benchmark]: TraceAbstraction took 70915.19ms. Allocated memory was 62.9MB in the beginning and 98.6MB in the end (delta: 35.7MB). Free memory was 30.6MB in the beginning and 72.0MB in the end (delta: -41.4MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2022-11-02 20:28:13,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 52.4MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 48.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.93ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 27.2MB in the beginning and 38.3MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.07ms. Allocated memory is still 62.9MB. Free memory was 38.1MB in the beginning and 36.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.11ms. Allocated memory is still 62.9MB. Free memory was 36.0MB in the beginning and 33.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 968.78ms. Allocated memory is still 62.9MB. Free memory was 33.9MB in the beginning and 31.2MB in the end (delta: 2.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 70915.19ms. Allocated memory was 62.9MB in the beginning and 98.6MB in the end (delta: 35.7MB). Free memory was 30.6MB in the beginning and 72.0MB in the end (delta: -41.4MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_39| input size 144 context size 144 output size 144 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_$Pointer$.base_39| input size 144 context size 144 output size 144: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-02 20:28:13,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e27505b9-2659-4309-9fbf-d83d7c6ca5c1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_$Pointer$.base_39| input size 144 context size 144 output size 144