./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8 --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 d1a3abd6c92a6d0d0dc43edf8f70faeb8d7cb6d143fe14753200dcbb4ae12846 --- 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-e04fb08 [2022-11-16 12:50:19,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:50:19,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:50:19,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:50:19,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:50:19,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:50:19,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:50:19,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:50:19,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:50:19,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:50:19,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:50:19,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:50:19,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:50:19,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:50:19,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:50:19,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:50:19,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:50:19,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:50:19,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:50:19,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:50:19,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:50:19,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:50:19,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:50:19,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:50:19,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:50:19,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:50:19,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:50:19,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:50:19,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:50:19,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:50:19,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:50:19,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:50:19,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:50:19,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:50:19,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:50:19,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:50:19,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:50:19,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:50:19,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:50:19,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:50:19,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:50:19,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:50:19,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:50:19,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:50:19,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:50:19,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:50:19,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:50:19,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:50:19,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:50:19,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:50:19,996 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:50:19,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:50:19,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:50:19,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:50:19,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:50:19,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:50:19,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:50:19,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:50:19,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:50:19,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:50:19,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:50:19,998 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:50:19,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:50:19,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:50:19,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:50:19,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:50:19,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:50:19,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:50:19,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:50:20,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:50:20,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:50:20,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:50:20,000 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:50:20,000 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:50:20,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:50:20,001 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_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1a3abd6c92a6d0d0dc43edf8f70faeb8d7cb6d143fe14753200dcbb4ae12846 [2022-11-16 12:50:20,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:50:20,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:50:20,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:50:20,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:50:20,318 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:50:20,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2022-11-16 12:50:20,390 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/data/56b94e0f4/84bd9343d24346498769b8ab7b1bf7c7/FLAG499c5152d [2022-11-16 12:50:20,953 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:50:20,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2022-11-16 12:50:20,966 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/data/56b94e0f4/84bd9343d24346498769b8ab7b1bf7c7/FLAG499c5152d [2022-11-16 12:50:21,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/data/56b94e0f4/84bd9343d24346498769b8ab7b1bf7c7 [2022-11-16 12:50:21,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:50:21,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:50:21,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:50:21,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:50:21,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:50:21,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:21,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269222af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21, skipping insertion in model container [2022-11-16 12:50:21,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:21,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:50:21,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:50:21,550 WARN L229 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_ad701906-b7f8-4f2f-adec-923caea1a0b9/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2022-11-16 12:50:21,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:50:21,744 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:50:21,772 WARN L229 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_ad701906-b7f8-4f2f-adec-923caea1a0b9/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2022-11-16 12:50:21,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:50:21,875 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:50:21,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21 WrapperNode [2022-11-16 12:50:21,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:50:21,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:50:21,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:50:21,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:50:21,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:21,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,011 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2022-11-16 12:50:22,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:50:22,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:50:22,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:50:22,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:50:22,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:50:22,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:50:22,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:50:22,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:50:22,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (1/1) ... [2022-11-16 12:50:22,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:50:22,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:22,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:50:22,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:50:22,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:50:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:50:22,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:50:22,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:50:22,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:50:22,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:50:23,736 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:50:23,750 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:50:23,751 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:50:23,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:50:23 BoogieIcfgContainer [2022-11-16 12:50:23,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:50:23,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:50:23,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:50:23,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:50:23,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:50:21" (1/3) ... [2022-11-16 12:50:23,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734fcb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:50:23, skipping insertion in model container [2022-11-16 12:50:23,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:50:21" (2/3) ... [2022-11-16 12:50:23,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734fcb1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:50:23, skipping insertion in model container [2022-11-16 12:50:23,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:50:23" (3/3) ... [2022-11-16 12:50:23,770 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label22.c [2022-11-16 12:50:23,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:50:23,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:50:23,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:50:23,903 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;@7c8b292f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:50:23,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:50:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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) [2022-11-16 12:50:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-16 12:50:23,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:23,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:23,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2022-11-16 12:50:23,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:23,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330854456] [2022-11-16 12:50:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:23,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:50:24,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:24,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330854456] [2022-11-16 12:50:24,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330854456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:24,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:24,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:50:24,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162557955] [2022-11-16 12:50:24,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:24,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:24,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:24,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:24,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:24,406 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 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) [2022-11-16 12:50:25,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:25,532 INFO L93 Difference]: Finished difference Result 567 states and 981 transitions. [2022-11-16 12:50:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:25,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 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) Word has length 37 [2022-11-16 12:50:25,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:25,557 INFO L225 Difference]: With dead ends: 567 [2022-11-16 12:50:25,557 INFO L226 Difference]: Without dead ends: 282 [2022-11-16 12:50:25,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:25,572 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 141 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:25,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 66 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:50:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-16 12:50:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2022-11-16 12:50:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.4661921708185053) internal successors, (412), 281 states have internal predecessors, (412), 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) [2022-11-16 12:50:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2022-11-16 12:50:25,636 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 37 [2022-11-16 12:50:25,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:25,637 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2022-11-16 12:50:25,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 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) [2022-11-16 12:50:25,637 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2022-11-16 12:50:25,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-16 12:50:25,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:25,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:25,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:50:25,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:25,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:25,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1956916710, now seen corresponding path program 1 times [2022-11-16 12:50:25,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:25,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146164216] [2022-11-16 12:50:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:25,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:50:25,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:25,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146164216] [2022-11-16 12:50:25,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146164216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:25,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:25,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:50:25,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444610014] [2022-11-16 12:50:25,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:25,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:25,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:25,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:25,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:25,909 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2022-11-16 12:50:26,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:26,574 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2022-11-16 12:50:26,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:26,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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 107 [2022-11-16 12:50:26,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:26,578 INFO L225 Difference]: With dead ends: 840 [2022-11-16 12:50:26,579 INFO L226 Difference]: Without dead ends: 560 [2022-11-16 12:50:26,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:26,581 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 76 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:26,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 66 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:50:26,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-11-16 12:50:26,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2022-11-16 12:50:26,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.3076923076923077) internal successors, (731), 559 states have internal predecessors, (731), 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) [2022-11-16 12:50:26,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 731 transitions. [2022-11-16 12:50:26,609 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 731 transitions. Word has length 107 [2022-11-16 12:50:26,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:26,610 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 731 transitions. [2022-11-16 12:50:26,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 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) [2022-11-16 12:50:26,610 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 731 transitions. [2022-11-16 12:50:26,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-16 12:50:26,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:26,613 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:26,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:50:26,614 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:26,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:26,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1254415504, now seen corresponding path program 1 times [2022-11-16 12:50:26,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:26,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336528281] [2022-11-16 12:50:26,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:26,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:50:26,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:26,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336528281] [2022-11-16 12:50:26,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336528281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:26,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:26,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:50:26,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383577193] [2022-11-16 12:50:26,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:26,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:26,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:26,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:26,899 INFO L87 Difference]: Start difference. First operand 560 states and 731 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2022-11-16 12:50:27,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:27,585 INFO L93 Difference]: Finished difference Result 1396 states and 1869 transitions. [2022-11-16 12:50:27,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:27,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 112 [2022-11-16 12:50:27,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:27,590 INFO L225 Difference]: With dead ends: 1396 [2022-11-16 12:50:27,590 INFO L226 Difference]: Without dead ends: 838 [2022-11-16 12:50:27,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:27,593 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 113 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:27,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 211 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:50:27,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2022-11-16 12:50:27,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2022-11-16 12:50:27,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2712066905615294) internal successors, (1064), 837 states have internal predecessors, (1064), 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) [2022-11-16 12:50:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1064 transitions. [2022-11-16 12:50:27,620 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1064 transitions. Word has length 112 [2022-11-16 12:50:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:27,621 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1064 transitions. [2022-11-16 12:50:27,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2022-11-16 12:50:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1064 transitions. [2022-11-16 12:50:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-16 12:50:27,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:27,626 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:27,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:50:27,627 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:27,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:27,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1417348248, now seen corresponding path program 1 times [2022-11-16 12:50:27,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:27,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925205193] [2022-11-16 12:50:27,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:27,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:27,856 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:50:27,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:27,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925205193] [2022-11-16 12:50:27,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925205193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:27,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:27,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:50:27,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27873044] [2022-11-16 12:50:27,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:27,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:27,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:27,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:27,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:27,860 INFO L87 Difference]: Start difference. First operand 838 states and 1064 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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) [2022-11-16 12:50:28,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:28,601 INFO L93 Difference]: Finished difference Result 2230 states and 2778 transitions. [2022-11-16 12:50:28,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:28,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 128 [2022-11-16 12:50:28,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:28,607 INFO L225 Difference]: With dead ends: 2230 [2022-11-16 12:50:28,607 INFO L226 Difference]: Without dead ends: 1394 [2022-11-16 12:50:28,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:28,610 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:28,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 34 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:50:28,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2022-11-16 12:50:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2022-11-16 12:50:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.167264895908112) internal successors, (1626), 1393 states have internal predecessors, (1626), 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) [2022-11-16 12:50:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1626 transitions. [2022-11-16 12:50:28,643 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1626 transitions. Word has length 128 [2022-11-16 12:50:28,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:28,644 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 1626 transitions. [2022-11-16 12:50:28,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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) [2022-11-16 12:50:28,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1626 transitions. [2022-11-16 12:50:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-16 12:50:28,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:28,653 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:28,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:50:28,654 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:28,655 INFO L85 PathProgramCache]: Analyzing trace with hash 895165085, now seen corresponding path program 1 times [2022-11-16 12:50:28,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:28,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383697405] [2022-11-16 12:50:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:28,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:50:29,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:29,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383697405] [2022-11-16 12:50:29,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383697405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:29,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:29,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:50:29,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692401285] [2022-11-16 12:50:29,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:29,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:29,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:29,017 INFO L87 Difference]: Start difference. First operand 1394 states and 1626 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 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) [2022-11-16 12:50:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:29,648 INFO L93 Difference]: Finished difference Result 2925 states and 3399 transitions. [2022-11-16 12:50:29,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:29,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 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 129 [2022-11-16 12:50:29,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:29,661 INFO L225 Difference]: With dead ends: 2925 [2022-11-16 12:50:29,661 INFO L226 Difference]: Without dead ends: 1533 [2022-11-16 12:50:29,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:29,664 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 49 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:29,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 82 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:50:29,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2022-11-16 12:50:29,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2022-11-16 12:50:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 1.1553524804177546) internal successors, (1770), 1532 states have internal predecessors, (1770), 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) [2022-11-16 12:50:29,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1770 transitions. [2022-11-16 12:50:29,701 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1770 transitions. Word has length 129 [2022-11-16 12:50:29,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:29,702 INFO L495 AbstractCegarLoop]: Abstraction has 1533 states and 1770 transitions. [2022-11-16 12:50:29,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 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) [2022-11-16 12:50:29,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1770 transitions. [2022-11-16 12:50:29,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-16 12:50:29,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:29,713 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:29,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:50:29,714 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:29,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:29,715 INFO L85 PathProgramCache]: Analyzing trace with hash 168544124, now seen corresponding path program 1 times [2022-11-16 12:50:29,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:29,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398084472] [2022-11-16 12:50:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:29,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:30,262 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-16 12:50:30,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:30,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398084472] [2022-11-16 12:50:30,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398084472] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:50:30,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270340538] [2022-11-16 12:50:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:30,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:30,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:30,267 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:30,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:50:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:30,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:50:30,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-16 12:50:30,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:50:30,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270340538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:30,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:50:30,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-11-16 12:50:30,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485471444] [2022-11-16 12:50:30,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:30,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:30,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:30,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:30,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:50:30,855 INFO L87 Difference]: Start difference. First operand 1533 states and 1770 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2022-11-16 12:50:31,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:31,492 INFO L93 Difference]: Finished difference Result 2091 states and 2444 transitions. [2022-11-16 12:50:31,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:31,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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 167 [2022-11-16 12:50:31,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:31,499 INFO L225 Difference]: With dead ends: 2091 [2022-11-16 12:50:31,500 INFO L226 Difference]: Without dead ends: 2089 [2022-11-16 12:50:31,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:50:31,505 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 48 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:31,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 16 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:50:31,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2022-11-16 12:50:31,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1672. [2022-11-16 12:50:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.1717534410532615) internal successors, (1958), 1671 states have internal predecessors, (1958), 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) [2022-11-16 12:50:31,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1958 transitions. [2022-11-16 12:50:31,546 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1958 transitions. Word has length 167 [2022-11-16 12:50:31,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:31,546 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 1958 transitions. [2022-11-16 12:50:31,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2022-11-16 12:50:31,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1958 transitions. [2022-11-16 12:50:31,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-16 12:50:31,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:31,550 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:31,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:50:31,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 12:50:31,755 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:31,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:31,756 INFO L85 PathProgramCache]: Analyzing trace with hash -949617387, now seen corresponding path program 1 times [2022-11-16 12:50:31,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:31,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66611581] [2022-11-16 12:50:31,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:31,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:31,963 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:50:31,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:31,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66611581] [2022-11-16 12:50:31,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66611581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:31,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:31,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:50:31,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613677788] [2022-11-16 12:50:31,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:31,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:31,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:31,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:31,970 INFO L87 Difference]: Start difference. First operand 1672 states and 1958 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2022-11-16 12:50:32,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:32,638 INFO L93 Difference]: Finished difference Result 3620 states and 4328 transitions. [2022-11-16 12:50:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:32,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 197 [2022-11-16 12:50:32,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:32,646 INFO L225 Difference]: With dead ends: 3620 [2022-11-16 12:50:32,647 INFO L226 Difference]: Without dead ends: 2089 [2022-11-16 12:50:32,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:32,650 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 50 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:32,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 215 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:50:32,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2022-11-16 12:50:32,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1672. [2022-11-16 12:50:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.165769000598444) internal successors, (1948), 1671 states have internal predecessors, (1948), 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) [2022-11-16 12:50:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1948 transitions. [2022-11-16 12:50:32,696 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1948 transitions. Word has length 197 [2022-11-16 12:50:32,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:32,697 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 1948 transitions. [2022-11-16 12:50:32,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2022-11-16 12:50:32,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1948 transitions. [2022-11-16 12:50:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-16 12:50:32,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:32,702 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:32,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:50:32,703 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:32,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1189835144, now seen corresponding path program 1 times [2022-11-16 12:50:32,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:32,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367099189] [2022-11-16 12:50:32,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:32,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 29 proven. 40 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-16 12:50:33,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:33,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367099189] [2022-11-16 12:50:33,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367099189] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:50:33,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659510152] [2022-11-16 12:50:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:33,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:33,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:50:33,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:50:33,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:50:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:33,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:50:33,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:50:33,315 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-16 12:50:33,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:50:33,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659510152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:33,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:50:33,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-16 12:50:33,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318630176] [2022-11-16 12:50:33,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:33,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:33,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:33,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:33,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:50:33,318 INFO L87 Difference]: Start difference. First operand 1672 states and 1948 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2022-11-16 12:50:33,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:33,938 INFO L93 Difference]: Finished difference Result 2369 states and 2770 transitions. [2022-11-16 12:50:33,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:33,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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 211 [2022-11-16 12:50:33,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:33,946 INFO L225 Difference]: With dead ends: 2369 [2022-11-16 12:50:33,946 INFO L226 Difference]: Without dead ends: 2367 [2022-11-16 12:50:33,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:50:33,947 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 147 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:33,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 11 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:50:33,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2022-11-16 12:50:33,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 1533. [2022-11-16 12:50:33,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 1.1736292428198434) internal successors, (1798), 1532 states have internal predecessors, (1798), 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) [2022-11-16 12:50:33,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1798 transitions. [2022-11-16 12:50:33,985 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1798 transitions. Word has length 211 [2022-11-16 12:50:33,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:33,986 INFO L495 AbstractCegarLoop]: Abstraction has 1533 states and 1798 transitions. [2022-11-16 12:50:33,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 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) [2022-11-16 12:50:33,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1798 transitions. [2022-11-16 12:50:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-11-16 12:50:33,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:33,993 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:34,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:50:34,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:50:34,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:34,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:34,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1486036807, now seen corresponding path program 1 times [2022-11-16 12:50:34,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:34,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607084832] [2022-11-16 12:50:34,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:34,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-16 12:50:34,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:34,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607084832] [2022-11-16 12:50:34,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607084832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:34,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:34,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:50:34,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267186522] [2022-11-16 12:50:34,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:34,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:50:34,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:34,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:50:34,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:50:34,972 INFO L87 Difference]: Start difference. First operand 1533 states and 1798 transitions. Second operand has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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) [2022-11-16 12:50:35,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:35,575 INFO L93 Difference]: Finished difference Result 2980 states and 3505 transitions. [2022-11-16 12:50:35,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:50:35,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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 300 [2022-11-16 12:50:35,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:35,582 INFO L225 Difference]: With dead ends: 2980 [2022-11-16 12:50:35,582 INFO L226 Difference]: Without dead ends: 1533 [2022-11-16 12:50:35,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:50:35,588 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 201 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:35,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 23 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:50:35,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2022-11-16 12:50:35,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2022-11-16 12:50:35,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 1.1697127937336815) internal successors, (1792), 1532 states have internal predecessors, (1792), 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) [2022-11-16 12:50:35,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1792 transitions. [2022-11-16 12:50:35,634 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1792 transitions. Word has length 300 [2022-11-16 12:50:35,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:35,635 INFO L495 AbstractCegarLoop]: Abstraction has 1533 states and 1792 transitions. [2022-11-16 12:50:35,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.57142857142857) internal successors, (249), 6 states have internal predecessors, (249), 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) [2022-11-16 12:50:35,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1792 transitions. [2022-11-16 12:50:35,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-16 12:50:35,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:50:35,641 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:35,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:50:35,642 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:50:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:50:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash 59015251, now seen corresponding path program 1 times [2022-11-16 12:50:35,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:50:35,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073028835] [2022-11-16 12:50:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:50:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:50:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:50:36,390 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-11-16 12:50:36,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:50:36,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073028835] [2022-11-16 12:50:36,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073028835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:50:36,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:50:36,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:50:36,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055800697] [2022-11-16 12:50:36,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:50:36,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:50:36,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:50:36,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:50:36,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:36,394 INFO L87 Difference]: Start difference. First operand 1533 states and 1792 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2022-11-16 12:50:36,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:50:36,954 INFO L93 Difference]: Finished difference Result 2923 states and 3438 transitions. [2022-11-16 12:50:36,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:50:36,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 336 [2022-11-16 12:50:36,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:50:36,956 INFO L225 Difference]: With dead ends: 2923 [2022-11-16 12:50:36,956 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:50:36,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:50:36,959 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 127 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:50:36,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 156 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:50:36,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:50:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:50:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-16 12:50:36,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:50:36,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 336 [2022-11-16 12:50:36,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:50:36,962 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:50:36,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2022-11-16 12:50:36,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:50:36,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:50:36,965 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:50:36,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:50:36,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:50:37,400 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2022-11-16 12:50:37,400 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2022-11-16 12:50:37,400 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2022-11-16 12:50:37,400 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2022-11-16 12:50:37,400 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2022-11-16 12:50:37,400 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2022-11-16 12:50:37,400 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,400 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-11-16 12:50:37,401 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-11-16 12:50:37,402 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-11-16 12:50:37,402 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-16 12:50:37,402 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2022-11-16 12:50:37,402 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2022-11-16 12:50:37,402 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2022-11-16 12:50:37,402 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2022-11-16 12:50:37,402 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2022-11-16 12:50:37,402 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2022-11-16 12:50:37,403 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2022-11-16 12:50:37,404 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2022-11-16 12:50:37,405 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2022-11-16 12:50:37,406 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-11-16 12:50:37,407 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,408 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-11-16 12:50:37,409 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,410 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2022-11-16 12:50:37,412 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:50:37,413 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-11-16 12:50:37,413 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-11-16 12:50:37,413 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-11-16 12:50:37,413 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-11-16 12:50:37,413 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-11-16 12:50:37,414 INFO L895 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= ~a10~0 0)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and (or (and .cse0 (<= 8 ~a19~0)) (and .cse0 (<= ~a1~0 23))) .cse1 .cse2) (and (<= ~a19~0 9) .cse1 .cse2 (not .cse0)) (and (= ~a10~0 1) .cse1 .cse2))) [2022-11-16 12:50:37,414 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2022-11-16 12:50:37,414 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2022-11-16 12:50:37,415 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2022-11-16 12:50:37,415 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2022-11-16 12:50:37,415 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,415 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,415 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,415 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,416 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,416 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2022-11-16 12:50:37,416 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2022-11-16 12:50:37,416 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2022-11-16 12:50:37,416 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-11-16 12:50:37,416 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-11-16 12:50:37,417 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-11-16 12:50:37,417 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-11-16 12:50:37,417 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-11-16 12:50:37,417 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2022-11-16 12:50:37,417 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2022-11-16 12:50:37,417 INFO L902 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2022-11-16 12:50:37,418 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2022-11-16 12:50:37,418 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2022-11-16 12:50:37,418 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2022-11-16 12:50:37,418 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:50:37,418 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,418 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,419 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,419 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,419 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,419 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-11-16 12:50:37,419 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-11-16 12:50:37,419 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-11-16 12:50:37,419 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-11-16 12:50:37,420 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-11-16 12:50:37,420 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2022-11-16 12:50:37,420 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2022-11-16 12:50:37,420 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2022-11-16 12:50:37,420 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2022-11-16 12:50:37,420 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,421 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,421 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,421 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:50:37,421 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,421 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2022-11-16 12:50:37,422 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2022-11-16 12:50:37,422 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2022-11-16 12:50:37,422 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2022-11-16 12:50:37,422 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-16 12:50:37,422 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-11-16 12:50:37,422 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-11-16 12:50:37,423 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-11-16 12:50:37,423 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-11-16 12:50:37,423 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2022-11-16 12:50:37,423 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2022-11-16 12:50:37,423 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2022-11-16 12:50:37,424 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= ~a10~0 0)) (.cse1 (= 14 ~a4~0)) (.cse2 (= ~a12~0 0))) (or (and (or (and .cse0 (<= 8 ~a19~0)) (and .cse0 (<= ~a1~0 23))) .cse1 .cse2) (and (<= ~a19~0 9) .cse1 .cse2 (not .cse0)) (and (= ~a10~0 1) .cse1 .cse2))) [2022-11-16 12:50:37,424 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2022-11-16 12:50:37,424 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,424 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,424 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,425 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,425 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-11-16 12:50:37,425 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,425 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,425 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2022-11-16 12:50:37,425 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2022-11-16 12:50:37,426 INFO L899 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2022-11-16 12:50:37,426 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-11-16 12:50:37,426 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-11-16 12:50:37,426 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-11-16 12:50:37,426 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-11-16 12:50:37,427 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-11-16 12:50:37,427 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-16 12:50:37,427 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:50:37,427 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2022-11-16 12:50:37,427 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2022-11-16 12:50:37,427 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2022-11-16 12:50:37,428 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2022-11-16 12:50:37,428 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2022-11-16 12:50:37,428 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,428 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,428 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,428 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,429 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,429 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2022-11-16 12:50:37,429 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2022-11-16 12:50:37,429 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2022-11-16 12:50:37,429 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2022-11-16 12:50:37,429 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-11-16 12:50:37,430 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-11-16 12:50:37,430 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-11-16 12:50:37,430 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-11-16 12:50:37,430 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-11-16 12:50:37,430 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-16 12:50:37,434 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:50:37,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:50:37,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:50:37 BoogieIcfgContainer [2022-11-16 12:50:37,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:50:37,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:50:37,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:50:37,463 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:50:37,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:50:23" (3/4) ... [2022-11-16 12:50:37,467 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:50:37,492 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 12:50:37,493 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:50:37,494 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:50:37,495 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:50:37,622 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:50:37,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:50:37,623 INFO L158 Benchmark]: Toolchain (without parser) took 16412.71ms. Allocated memory was 136.3MB in the beginning and 251.7MB in the end (delta: 115.3MB). Free memory was 98.6MB in the beginning and 110.1MB in the end (delta: -11.5MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. [2022-11-16 12:50:37,624 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 92.3MB. Free memory was 67.9MB in the beginning and 67.8MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:50:37,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.68ms. Allocated memory is still 136.3MB. Free memory was 98.4MB in the beginning and 92.9MB in the end (delta: 5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:50:37,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 135.63ms. Allocated memory is still 136.3MB. Free memory was 92.9MB in the beginning and 85.2MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:50:37,625 INFO L158 Benchmark]: Boogie Preprocessor took 68.45ms. Allocated memory is still 136.3MB. Free memory was 85.2MB in the beginning and 80.3MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:50:37,626 INFO L158 Benchmark]: RCFGBuilder took 1672.43ms. Allocated memory is still 136.3MB. Free memory was 80.3MB in the beginning and 100.6MB in the end (delta: -20.3MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-11-16 12:50:37,626 INFO L158 Benchmark]: TraceAbstraction took 13705.61ms. Allocated memory was 136.3MB in the beginning and 251.7MB in the end (delta: 115.3MB). Free memory was 99.8MB in the beginning and 119.5MB in the end (delta: -19.7MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. [2022-11-16 12:50:37,627 INFO L158 Benchmark]: Witness Printer took 159.74ms. Allocated memory is still 251.7MB. Free memory was 119.5MB in the beginning and 110.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:50:37,629 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 92.3MB. Free memory was 67.9MB in the beginning and 67.8MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.68ms. Allocated memory is still 136.3MB. Free memory was 98.4MB in the beginning and 92.9MB in the end (delta: 5.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 135.63ms. Allocated memory is still 136.3MB. Free memory was 92.9MB in the beginning and 85.2MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.45ms. Allocated memory is still 136.3MB. Free memory was 85.2MB in the beginning and 80.3MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1672.43ms. Allocated memory is still 136.3MB. Free memory was 80.3MB in the beginning and 100.6MB in the end (delta: -20.3MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13705.61ms. Allocated memory was 136.3MB in the beginning and 251.7MB in the end (delta: 115.3MB). Free memory was 99.8MB in the beginning and 119.5MB in the end (delta: -19.7MB). Peak memory consumption was 96.2MB. Max. memory is 16.1GB. * Witness Printer took 159.74ms. Allocated memory is still 251.7MB. Free memory was 119.5MB in the beginning and 110.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1039 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1039 mSDsluCounter, 880 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 560 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3835 IncrementalHoareTripleChecker+Invalid, 4395 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 560 mSolverCounterUnsat, 827 mSDtfsCounter, 3835 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1672occurred in iteration=6, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1668 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 29 NumberOfFragments, 95 HoareAnnotationTreeSize, 3 FomulaSimplifications, 54 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 810 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 2102 NumberOfCodeBlocks, 2102 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2090 ConstructedInterpolants, 0 QuantifiedInterpolants, 7218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 576 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 1223/1288 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((a10 == 0 && 8 <= a19) || (a10 == 0 && a1 <= 23)) && 14 == a4) && a12 == 0) || (((a19 <= 9 && 14 == a4) && a12 == 0) && !(a10 == 0))) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((a10 == 0 && 8 <= a19) || (a10 == 0 && a1 <= 23)) && 14 == a4) && a12 == 0) || (((a19 <= 9 && 14 == a4) && a12 == 0) && !(a10 == 0))) || ((a10 == 1 && 14 == a4) && a12 == 0) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-16 12:50:37,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad701906-b7f8-4f2f-adec-923caea1a0b9/bin/uautomizer-tPACEb0tL8/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 Writing output log to file Ultimate.log Result: TRUE