./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a --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 1b3a5c95c10076386b15606d0ac6559403dceee57f74bca8a711eb692be2f98e --- 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-b5237d8 [2022-11-21 17:22:18,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:22:18,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:22:18,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:22:18,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:22:18,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:22:18,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:22:18,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:22:18,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:22:18,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:22:18,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:22:18,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:22:18,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:22:18,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:22:18,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:22:18,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:22:18,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:22:18,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:22:18,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:22:18,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:22:18,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:22:18,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:22:18,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:22:18,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:22:18,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:22:18,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:22:18,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:22:18,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:22:18,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:22:18,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:22:18,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:22:18,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:22:18,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:22:18,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:22:18,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:22:18,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:22:18,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:22:18,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:22:18,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:22:18,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:22:18,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:22:18,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:22:18,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:22:18,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:22:18,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:22:18,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:22:18,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:22:18,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:22:18,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:22:18,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:22:18,920 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:22:18,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:22:18,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:22:18,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:22:18,929 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:22:18,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:22:18,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:22:18,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:22:18,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:22:18,930 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:22:18,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:22:18,930 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:22:18,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:22:18,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:22:18,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:22:18,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:22:18,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:18,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:22:18,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:22:18,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:22:18,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:22:18,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:22:18,933 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:22:18,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:22:18,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:22:18,933 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_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b3a5c95c10076386b15606d0ac6559403dceee57f74bca8a711eb692be2f98e [2022-11-21 17:22:19,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:22:19,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:22:19,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:22:19,307 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:22:19,308 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:22:19,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/eca-rers2012/Problem14_label09.c [2022-11-21 17:22:22,690 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:22:23,028 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:22:23,029 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/sv-benchmarks/c/eca-rers2012/Problem14_label09.c [2022-11-21 17:22:23,056 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/data/13440e59c/600e3de982de4eee86a93144da9405c7/FLAGea6633039 [2022-11-21 17:22:23,074 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/data/13440e59c/600e3de982de4eee86a93144da9405c7 [2022-11-21 17:22:23,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:22:23,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:22:23,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:23,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:22:23,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:22:23,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:23,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a523f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23, skipping insertion in model container [2022-11-21 17:22:23,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:23,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:22:23,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:22:23,360 WARN L237 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_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/sv-benchmarks/c/eca-rers2012/Problem14_label09.c[4722,4735] [2022-11-21 17:22:23,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:23,685 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:22:23,726 WARN L237 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_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/sv-benchmarks/c/eca-rers2012/Problem14_label09.c[4722,4735] [2022-11-21 17:22:23,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:22:23,890 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:22:23,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23 WrapperNode [2022-11-21 17:22:23,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:22:23,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:23,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:22:23,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:22:23,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:23,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,005 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-11-21 17:22:24,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:22:24,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:22:24,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:22:24,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:22:24,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:22:24,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:22:24,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:22:24,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:22:24,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (1/1) ... [2022-11-21 17:22:24,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:22:24,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:24,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:22:24,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:22:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:22:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:22:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:22:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:22:24,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:22:24,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:22:25,847 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:22:25,857 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:22:25,857 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:22:25,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:25 BoogieIcfgContainer [2022-11-21 17:22:25,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:22:25,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:22:25,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:22:25,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:22:25,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:22:23" (1/3) ... [2022-11-21 17:22:25,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309942d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:25, skipping insertion in model container [2022-11-21 17:22:25,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:22:23" (2/3) ... [2022-11-21 17:22:25,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309942d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:22:25, skipping insertion in model container [2022-11-21 17:22:25,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:25" (3/3) ... [2022-11-21 17:22:25,870 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label09.c [2022-11-21 17:22:25,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:22:25,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:22:25,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:22:25,964 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;@17362781, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:22:25,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:22:25,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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) [2022-11-21 17:22:25,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-21 17:22:25,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:25,985 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:25,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:25,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:25,995 INFO L85 PathProgramCache]: Analyzing trace with hash -2068820151, now seen corresponding path program 1 times [2022-11-21 17:22:26,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:26,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941890855] [2022-11-21 17:22:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:26,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:26,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:26,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941890855] [2022-11-21 17:22:26,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941890855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:26,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:26,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:26,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542506709] [2022-11-21 17:22:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:26,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:22:26,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:26,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:22:26,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:22:26,739 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2022-11-21 17:22:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:28,933 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2022-11-21 17:22:28,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:22:28,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2022-11-21 17:22:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:28,954 INFO L225 Difference]: With dead ends: 850 [2022-11-21 17:22:28,955 INFO L226 Difference]: Without dead ends: 538 [2022-11-21 17:22:28,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:22:28,963 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 499 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:28,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 194 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-21 17:22:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-21 17:22:29,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-11-21 17:22:29,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 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) [2022-11-21 17:22:29,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2022-11-21 17:22:29,044 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 45 [2022-11-21 17:22:29,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:29,045 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2022-11-21 17:22:29,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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) [2022-11-21 17:22:29,046 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2022-11-21 17:22:29,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-21 17:22:29,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:29,050 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, 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] [2022-11-21 17:22:29,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:22:29,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:29,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:29,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1796285180, now seen corresponding path program 1 times [2022-11-21 17:22:29,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:29,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528413538] [2022-11-21 17:22:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:29,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:29,457 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:29,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:29,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528413538] [2022-11-21 17:22:29,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528413538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:29,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:29,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:29,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171761279] [2022-11-21 17:22:29,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:29,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:22:29,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:29,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:22:29,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:22:29,466 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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) [2022-11-21 17:22:30,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:30,663 INFO L93 Difference]: Finished difference Result 1281 states and 1978 transitions. [2022-11-21 17:22:30,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:22:30,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2022-11-21 17:22:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:30,668 INFO L225 Difference]: With dead ends: 1281 [2022-11-21 17:22:30,669 INFO L226 Difference]: Without dead ends: 894 [2022-11-21 17:22:30,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:22:30,672 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 118 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:30,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 119 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 17:22:30,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-11-21 17:22:30,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 716. [2022-11-21 17:22:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.220979020979021) internal successors, (873), 715 states have internal predecessors, (873), 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) [2022-11-21 17:22:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 873 transitions. [2022-11-21 17:22:30,705 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 873 transitions. Word has length 125 [2022-11-21 17:22:30,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:30,706 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 873 transitions. [2022-11-21 17:22:30,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 3 states have internal predecessors, (125), 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) [2022-11-21 17:22:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 873 transitions. [2022-11-21 17:22:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-21 17:22:30,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:30,716 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:30,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:22:30,716 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:30,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:30,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2036921752, now seen corresponding path program 1 times [2022-11-21 17:22:30,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:30,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548329683] [2022-11-21 17:22:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:30,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:31,360 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 85 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:31,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:31,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548329683] [2022-11-21 17:22:31,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548329683] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:22:31,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271511895] [2022-11-21 17:22:31,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:31,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:22:31,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:31,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:22:31,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:22:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:31,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:22:31,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-21 17:22:32,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:32,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271511895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:32,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:22:32,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 17:22:32,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164813066] [2022-11-21 17:22:32,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:32,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:32,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:32,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:32,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:32,052 INFO L87 Difference]: Start difference. First operand 716 states and 873 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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) [2022-11-21 17:22:32,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:32,776 INFO L93 Difference]: Finished difference Result 1608 states and 2071 transitions. [2022-11-21 17:22:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:32,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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 216 [2022-11-21 17:22:32,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:32,782 INFO L225 Difference]: With dead ends: 1608 [2022-11-21 17:22:32,783 INFO L226 Difference]: Without dead ends: 1072 [2022-11-21 17:22:32,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:32,785 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:32,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 47 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 17:22:32,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-11-21 17:22:32,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2022-11-21 17:22:32,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.2156862745098038) internal successors, (1302), 1071 states have internal predecessors, (1302), 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) [2022-11-21 17:22:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1302 transitions. [2022-11-21 17:22:32,841 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1302 transitions. Word has length 216 [2022-11-21 17:22:32,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:32,843 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1302 transitions. [2022-11-21 17:22:32,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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) [2022-11-21 17:22:32,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1302 transitions. [2022-11-21 17:22:32,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-21 17:22:32,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:32,863 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:32,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:33,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-21 17:22:33,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:33,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:33,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1670561777, now seen corresponding path program 1 times [2022-11-21 17:22:33,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:33,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92159873] [2022-11-21 17:22:33,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:33,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:33,465 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:22:33,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:33,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92159873] [2022-11-21 17:22:33,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92159873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:33,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:33,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:33,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804877598] [2022-11-21 17:22:33,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:33,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:33,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:33,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:33,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:33,470 INFO L87 Difference]: Start difference. First operand 1072 states and 1302 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2022-11-21 17:22:34,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:34,276 INFO L93 Difference]: Finished difference Result 2498 states and 3070 transitions. [2022-11-21 17:22:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:34,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 219 [2022-11-21 17:22:34,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:34,282 INFO L225 Difference]: With dead ends: 2498 [2022-11-21 17:22:34,283 INFO L226 Difference]: Without dead ends: 1606 [2022-11-21 17:22:34,284 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 [2022-11-21 17:22:34,285 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:34,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-21 17:22:34,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2022-11-21 17:22:34,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2022-11-21 17:22:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.168847352024922) internal successors, (1876), 1605 states have internal predecessors, (1876), 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) [2022-11-21 17:22:34,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1876 transitions. [2022-11-21 17:22:34,319 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1876 transitions. Word has length 219 [2022-11-21 17:22:34,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:34,319 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 1876 transitions. [2022-11-21 17:22:34,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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) [2022-11-21 17:22:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1876 transitions. [2022-11-21 17:22:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2022-11-21 17:22:34,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:34,324 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, 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, 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] [2022-11-21 17:22:34,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:22:34,325 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:34,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:34,325 INFO L85 PathProgramCache]: Analyzing trace with hash -841281577, now seen corresponding path program 1 times [2022-11-21 17:22:34,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:34,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843702906] [2022-11-21 17:22:34,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:34,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:34,793 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-21 17:22:34,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:34,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843702906] [2022-11-21 17:22:34,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843702906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:34,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:34,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:34,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140155877] [2022-11-21 17:22:34,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:34,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:22:34,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:22:34,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:22:34,797 INFO L87 Difference]: Start difference. First operand 1606 states and 1876 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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) [2022-11-21 17:22:35,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:35,783 INFO L93 Difference]: Finished difference Result 3061 states and 3636 transitions. [2022-11-21 17:22:35,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:22:35,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 [2022-11-21 17:22:35,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:35,791 INFO L225 Difference]: With dead ends: 3061 [2022-11-21 17:22:35,791 INFO L226 Difference]: Without dead ends: 1784 [2022-11-21 17:22:35,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:22:35,794 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:35,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-21 17:22:35,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2022-11-21 17:22:35,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2022-11-21 17:22:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1196261682242992) internal successors, (1797), 1605 states have internal predecessors, (1797), 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) [2022-11-21 17:22:35,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1797 transitions. [2022-11-21 17:22:35,832 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1797 transitions. Word has length 336 [2022-11-21 17:22:35,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:35,833 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 1797 transitions. [2022-11-21 17:22:35,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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) [2022-11-21 17:22:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1797 transitions. [2022-11-21 17:22:35,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-21 17:22:35,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:35,847 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:35,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:22:35,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:35,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:35,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1590776259, now seen corresponding path program 1 times [2022-11-21 17:22:35,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:35,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360235483] [2022-11-21 17:22:35,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:35,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:36,687 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-11-21 17:22:36,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:36,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360235483] [2022-11-21 17:22:36,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360235483] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:22:36,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022176450] [2022-11-21 17:22:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:36,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:22:36,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:36,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:22:36,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:22:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:36,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:22:36,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2022-11-21 17:22:37,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:37,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022176450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:37,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:22:37,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-11-21 17:22:37,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567159966] [2022-11-21 17:22:37,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:37,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:37,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:37,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:37,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:22:37,634 INFO L87 Difference]: Start difference. First operand 1606 states and 1797 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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) [2022-11-21 17:22:38,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:38,286 INFO L93 Difference]: Finished difference Result 2320 states and 2566 transitions. [2022-11-21 17:22:38,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:38,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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 425 [2022-11-21 17:22:38,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:38,294 INFO L225 Difference]: With dead ends: 2320 [2022-11-21 17:22:38,294 INFO L226 Difference]: Without dead ends: 2318 [2022-11-21 17:22:38,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:22:38,296 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:38,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 11 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:22:38,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-11-21 17:22:38,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1428. [2022-11-21 17:22:38,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.0939032936229853) internal successors, (1561), 1427 states have internal predecessors, (1561), 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) [2022-11-21 17:22:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1561 transitions. [2022-11-21 17:22:38,331 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1561 transitions. Word has length 425 [2022-11-21 17:22:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:38,332 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1561 transitions. [2022-11-21 17:22:38,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 2 states have internal predecessors, (175), 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) [2022-11-21 17:22:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1561 transitions. [2022-11-21 17:22:38,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-21 17:22:38,340 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:38,341 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:38,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:38,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:22:38,548 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:38,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:38,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1026613071, now seen corresponding path program 1 times [2022-11-21 17:22:38,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:38,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580475167] [2022-11-21 17:22:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:38,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:39,195 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 17:22:39,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:39,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580475167] [2022-11-21 17:22:39,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580475167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:39,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:39,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:39,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889900214] [2022-11-21 17:22:39,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:39,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:39,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:39,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:39,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:39,199 INFO L87 Difference]: Start difference. First operand 1428 states and 1561 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2022-11-21 17:22:39,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:39,979 INFO L93 Difference]: Finished difference Result 3210 states and 3559 transitions. [2022-11-21 17:22:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:39,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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 431 [2022-11-21 17:22:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:39,987 INFO L225 Difference]: With dead ends: 3210 [2022-11-21 17:22:39,988 INFO L226 Difference]: Without dead ends: 1962 [2022-11-21 17:22:39,990 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 [2022-11-21 17:22:39,991 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:39,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 17:22:39,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-11-21 17:22:40,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1606. [2022-11-21 17:22:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0841121495327102) internal successors, (1740), 1605 states have internal predecessors, (1740), 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) [2022-11-21 17:22:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1740 transitions. [2022-11-21 17:22:40,038 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1740 transitions. Word has length 431 [2022-11-21 17:22:40,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:40,039 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 1740 transitions. [2022-11-21 17:22:40,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2022-11-21 17:22:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1740 transitions. [2022-11-21 17:22:40,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-11-21 17:22:40,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:40,050 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:40,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:22:40,050 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:40,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:40,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1829033834, now seen corresponding path program 1 times [2022-11-21 17:22:40,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:40,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198284421] [2022-11-21 17:22:40,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:40,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:40,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 17:22:40,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:40,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198284421] [2022-11-21 17:22:40,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198284421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:40,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:40,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:40,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508998404] [2022-11-21 17:22:40,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:40,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:40,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:40,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:40,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:40,668 INFO L87 Difference]: Start difference. First operand 1606 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2022-11-21 17:22:41,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:41,369 INFO L93 Difference]: Finished difference Result 3744 states and 4121 transitions. [2022-11-21 17:22:41,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:41,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 438 [2022-11-21 17:22:41,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:41,379 INFO L225 Difference]: With dead ends: 3744 [2022-11-21 17:22:41,380 INFO L226 Difference]: Without dead ends: 2318 [2022-11-21 17:22:41,382 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 [2022-11-21 17:22:41,386 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:41,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:22:41,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-11-21 17:22:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2022-11-21 17:22:41,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 2317 states have (on average 1.0884764782045748) internal successors, (2522), 2317 states have internal predecessors, (2522), 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) [2022-11-21 17:22:41,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2522 transitions. [2022-11-21 17:22:41,455 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2522 transitions. Word has length 438 [2022-11-21 17:22:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:41,456 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 2522 transitions. [2022-11-21 17:22:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2022-11-21 17:22:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2522 transitions. [2022-11-21 17:22:41,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-21 17:22:41,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:41,468 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:41,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:22:41,469 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:41,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1313117521, now seen corresponding path program 1 times [2022-11-21 17:22:41,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:41,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513107033] [2022-11-21 17:22:41,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:41,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 17:22:41,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:41,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513107033] [2022-11-21 17:22:41,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513107033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:41,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:41,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:41,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276511767] [2022-11-21 17:22:41,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:41,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:41,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:41,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:41,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:41,890 INFO L87 Difference]: Start difference. First operand 2318 states and 2522 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2022-11-21 17:22:42,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:42,574 INFO L93 Difference]: Finished difference Result 5702 states and 6287 transitions. [2022-11-21 17:22:42,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:42,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 479 [2022-11-21 17:22:42,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:42,588 INFO L225 Difference]: With dead ends: 5702 [2022-11-21 17:22:42,589 INFO L226 Difference]: Without dead ends: 3564 [2022-11-21 17:22:42,592 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 [2022-11-21 17:22:42,594 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:42,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 52 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:22:42,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2022-11-21 17:22:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2022-11-21 17:22:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0820081072653571) internal successors, (3470), 3207 states have internal predecessors, (3470), 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) [2022-11-21 17:22:42,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3470 transitions. [2022-11-21 17:22:42,674 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3470 transitions. Word has length 479 [2022-11-21 17:22:42,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:42,675 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 3470 transitions. [2022-11-21 17:22:42,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2022-11-21 17:22:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3470 transitions. [2022-11-21 17:22:42,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2022-11-21 17:22:42,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:42,693 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:42,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 17:22:42,693 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:42,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:42,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2019878851, now seen corresponding path program 1 times [2022-11-21 17:22:42,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:42,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589266528] [2022-11-21 17:22:42,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:42,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1545 backedges. 1084 proven. 104 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-11-21 17:22:43,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:43,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589266528] [2022-11-21 17:22:43,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589266528] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:22:43,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289703973] [2022-11-21 17:22:43,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:43,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:22:43,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:43,833 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:22:43,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:22:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:44,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:22:44,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:44,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1545 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-11-21 17:22:44,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:44,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289703973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:44,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:22:44,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-21 17:22:44,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330637036] [2022-11-21 17:22:44,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:44,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:44,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:44,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:44,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:44,184 INFO L87 Difference]: Start difference. First operand 3208 states and 3470 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2022-11-21 17:22:44,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:44,913 INFO L93 Difference]: Finished difference Result 4100 states and 4429 transitions. [2022-11-21 17:22:44,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:44,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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 624 [2022-11-21 17:22:44,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:44,927 INFO L225 Difference]: With dead ends: 4100 [2022-11-21 17:22:44,927 INFO L226 Difference]: Without dead ends: 4098 [2022-11-21 17:22:44,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:22:44,929 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 157 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:44,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 11 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 17:22:44,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2022-11-21 17:22:45,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3208. [2022-11-21 17:22:45,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0820081072653571) internal successors, (3470), 3207 states have internal predecessors, (3470), 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) [2022-11-21 17:22:45,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3470 transitions. [2022-11-21 17:22:45,022 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3470 transitions. Word has length 624 [2022-11-21 17:22:45,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:45,025 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 3470 transitions. [2022-11-21 17:22:45,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2022-11-21 17:22:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3470 transitions. [2022-11-21 17:22:45,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-11-21 17:22:45,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:45,034 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2022-11-21 17:22:45,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-21 17:22:45,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 17:22:45,243 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:45,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:45,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1713531829, now seen corresponding path program 1 times [2022-11-21 17:22:45,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:45,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939938933] [2022-11-21 17:22:45,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:45,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 857 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 17:22:45,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:45,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939938933] [2022-11-21 17:22:45,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939938933] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:22:45,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307462790] [2022-11-21 17:22:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:45,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:22:45,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:45,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:22:45,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:22:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:46,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:22:46,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 857 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 17:22:46,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:22:47,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 857 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-21 17:22:47,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307462790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:22:47,034 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:22:47,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-21 17:22:47,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790762122] [2022-11-21 17:22:47,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:22:47,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:22:47,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:47,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:22:47,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:47,039 INFO L87 Difference]: Start difference. First operand 3208 states and 3470 transitions. Second operand has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 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) [2022-11-21 17:22:48,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:48,560 INFO L93 Difference]: Finished difference Result 7482 states and 8150 transitions. [2022-11-21 17:22:48,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:22:48,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 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 634 [2022-11-21 17:22:48,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:48,576 INFO L225 Difference]: With dead ends: 7482 [2022-11-21 17:22:48,577 INFO L226 Difference]: Without dead ends: 4454 [2022-11-21 17:22:48,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1270 GetRequests, 1266 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:48,581 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 217 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:48,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 62 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-21 17:22:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2022-11-21 17:22:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3920. [2022-11-21 17:22:48,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0811431487624394) internal successors, (4237), 3919 states have internal predecessors, (4237), 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) [2022-11-21 17:22:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4237 transitions. [2022-11-21 17:22:48,687 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4237 transitions. Word has length 634 [2022-11-21 17:22:48,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:48,688 INFO L495 AbstractCegarLoop]: Abstraction has 3920 states and 4237 transitions. [2022-11-21 17:22:48,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.33333333333333) internal successors, (692), 6 states have internal predecessors, (692), 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) [2022-11-21 17:22:48,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4237 transitions. [2022-11-21 17:22:48,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2022-11-21 17:22:48,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:48,697 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2022-11-21 17:22:48,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:48,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 17:22:48,904 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:48,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:48,904 INFO L85 PathProgramCache]: Analyzing trace with hash 223844596, now seen corresponding path program 1 times [2022-11-21 17:22:48,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:48,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520516897] [2022-11-21 17:22:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:48,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1545 backedges. 1111 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-11-21 17:22:49,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:49,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520516897] [2022-11-21 17:22:49,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520516897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:49,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:49,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:49,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885069685] [2022-11-21 17:22:49,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:49,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:49,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:49,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:49,783 INFO L87 Difference]: Start difference. First operand 3920 states and 4237 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2022-11-21 17:22:50,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:50,425 INFO L93 Difference]: Finished difference Result 7838 states and 8487 transitions. [2022-11-21 17:22:50,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:50,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 644 [2022-11-21 17:22:50,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:50,453 INFO L225 Difference]: With dead ends: 7838 [2022-11-21 17:22:50,453 INFO L226 Difference]: Without dead ends: 4098 [2022-11-21 17:22:50,458 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 [2022-11-21 17:22:50,459 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 50 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:50,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 243 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:22:50,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2022-11-21 17:22:50,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3742. [2022-11-21 17:22:50,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.078321304464047) internal successors, (4034), 3741 states have internal predecessors, (4034), 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) [2022-11-21 17:22:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4034 transitions. [2022-11-21 17:22:50,558 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4034 transitions. Word has length 644 [2022-11-21 17:22:50,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:50,559 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4034 transitions. [2022-11-21 17:22:50,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2022-11-21 17:22:50,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4034 transitions. [2022-11-21 17:22:50,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2022-11-21 17:22:50,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:50,578 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2022-11-21 17:22:50,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:22:50,578 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:50,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:50,579 INFO L85 PathProgramCache]: Analyzing trace with hash -248319062, now seen corresponding path program 1 times [2022-11-21 17:22:50,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:50,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429939208] [2022-11-21 17:22:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:50,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 1003 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2022-11-21 17:22:51,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:51,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429939208] [2022-11-21 17:22:51,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429939208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:51,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:51,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:51,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052842305] [2022-11-21 17:22:51,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:51,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:51,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:51,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:51,133 INFO L87 Difference]: Start difference. First operand 3742 states and 4034 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 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) [2022-11-21 17:22:51,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:51,754 INFO L93 Difference]: Finished difference Result 8906 states and 9668 transitions. [2022-11-21 17:22:51,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:51,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 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) Word has length 706 [2022-11-21 17:22:51,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:51,769 INFO L225 Difference]: With dead ends: 8906 [2022-11-21 17:22:51,769 INFO L226 Difference]: Without dead ends: 5344 [2022-11-21 17:22:51,774 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 [2022-11-21 17:22:51,774 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:51,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 37 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:22:51,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-11-21 17:22:51,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2022-11-21 17:22:51,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.078025169409487) internal successors, (5568), 5165 states have internal predecessors, (5568), 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) [2022-11-21 17:22:51,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5568 transitions. [2022-11-21 17:22:51,892 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5568 transitions. Word has length 706 [2022-11-21 17:22:51,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:51,893 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5568 transitions. [2022-11-21 17:22:51,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 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) [2022-11-21 17:22:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5568 transitions. [2022-11-21 17:22:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2022-11-21 17:22:51,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:51,902 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2022-11-21 17:22:51,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:22:51,903 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:51,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:51,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1255761865, now seen corresponding path program 1 times [2022-11-21 17:22:51,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:51,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45189667] [2022-11-21 17:22:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:51,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 1118 proven. 93 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2022-11-21 17:22:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:52,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45189667] [2022-11-21 17:22:52,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45189667] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:22:52,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690245272] [2022-11-21 17:22:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:52,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:22:52,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:52,852 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:22:52,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 17:22:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:53,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:22:53,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 1211 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2022-11-21 17:22:53,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:53,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690245272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:53,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:22:53,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-21 17:22:53,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192759960] [2022-11-21 17:22:53,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:53,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:53,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:53,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:53,784 INFO L87 Difference]: Start difference. First operand 5166 states and 5568 transitions. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2022-11-21 17:22:54,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:54,400 INFO L93 Difference]: Finished difference Result 10508 states and 11329 transitions. [2022-11-21 17:22:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:54,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 724 [2022-11-21 17:22:54,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:54,424 INFO L225 Difference]: With dead ends: 10508 [2022-11-21 17:22:54,426 INFO L226 Difference]: Without dead ends: 5522 [2022-11-21 17:22:54,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:54,432 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:54,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:22:54,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-11-21 17:22:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5344. [2022-11-21 17:22:54,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0776717200074863) internal successors, (5758), 5343 states have internal predecessors, (5758), 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) [2022-11-21 17:22:54,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5758 transitions. [2022-11-21 17:22:54,571 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5758 transitions. Word has length 724 [2022-11-21 17:22:54,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:54,572 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5758 transitions. [2022-11-21 17:22:54,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2022-11-21 17:22:54,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5758 transitions. [2022-11-21 17:22:54,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2022-11-21 17:22:54,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:54,586 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:22:54,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:22:54,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-21 17:22:54,792 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:54,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1244517444, now seen corresponding path program 1 times [2022-11-21 17:22:54,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:54,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270774052] [2022-11-21 17:22:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:55,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1716 backedges. 1036 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2022-11-21 17:22:55,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:55,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270774052] [2022-11-21 17:22:55,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270774052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:55,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:22:55,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:22:55,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850626993] [2022-11-21 17:22:55,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:55,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:22:55,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:55,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:22:55,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:22:55,840 INFO L87 Difference]: Start difference. First operand 5344 states and 5758 transitions. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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) [2022-11-21 17:22:56,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:22:56,518 INFO L93 Difference]: Finished difference Result 10864 states and 11731 transitions. [2022-11-21 17:22:56,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:22:56,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 751 [2022-11-21 17:22:56,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:22:56,529 INFO L225 Difference]: With dead ends: 10864 [2022-11-21 17:22:56,530 INFO L226 Difference]: Without dead ends: 5700 [2022-11-21 17:22:56,534 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 [2022-11-21 17:22:56,535 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:22:56,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 227 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:22:56,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-11-21 17:22:56,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-11-21 17:22:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0700122828566414) internal successors, (6098), 5699 states have internal predecessors, (6098), 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) [2022-11-21 17:22:56,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6098 transitions. [2022-11-21 17:22:56,643 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6098 transitions. Word has length 751 [2022-11-21 17:22:56,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:22:56,644 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 6098 transitions. [2022-11-21 17:22:56,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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) [2022-11-21 17:22:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6098 transitions. [2022-11-21 17:22:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2022-11-21 17:22:56,653 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:22:56,653 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 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] [2022-11-21 17:22:56,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 17:22:56,654 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:22:56,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:22:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1327784350, now seen corresponding path program 1 times [2022-11-21 17:22:56,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:22:56,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797431689] [2022-11-21 17:22:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:56,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:22:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2182 backedges. 1166 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-11-21 17:22:58,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:22:58,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797431689] [2022-11-21 17:22:58,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797431689] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:22:58,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050391346] [2022-11-21 17:22:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:22:58,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:22:58,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:22:58,768 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:22:58,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 17:22:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:22:59,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:22:59,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:22:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2182 backedges. 879 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-11-21 17:22:59,468 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:22:59,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050391346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:22:59,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:22:59,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2022-11-21 17:22:59,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450776268] [2022-11-21 17:22:59,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:22:59,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:22:59,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:22:59,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:22:59,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:22:59,472 INFO L87 Difference]: Start difference. First operand 5700 states and 6098 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2022-11-21 17:23:00,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:00,718 INFO L93 Difference]: Finished difference Result 12644 states and 13548 transitions. [2022-11-21 17:23:00,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:23:00,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 801 [2022-11-21 17:23:00,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:00,735 INFO L225 Difference]: With dead ends: 12644 [2022-11-21 17:23:00,735 INFO L226 Difference]: Without dead ends: 7124 [2022-11-21 17:23:00,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 800 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:00,741 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 213 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:00,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 60 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 17:23:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-21 17:23:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6768. [2022-11-21 17:23:00,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0701935865228314) internal successors, (7242), 6767 states have internal predecessors, (7242), 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) [2022-11-21 17:23:00,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7242 transitions. [2022-11-21 17:23:00,874 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7242 transitions. Word has length 801 [2022-11-21 17:23:00,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:00,875 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7242 transitions. [2022-11-21 17:23:00,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2022-11-21 17:23:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7242 transitions. [2022-11-21 17:23:00,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2022-11-21 17:23:00,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:00,887 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 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, 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] [2022-11-21 17:23:00,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:23:01,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-21 17:23:01,099 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:01,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:01,100 INFO L85 PathProgramCache]: Analyzing trace with hash 776024818, now seen corresponding path program 1 times [2022-11-21 17:23:01,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:01,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667728398] [2022-11-21 17:23:01,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:01,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:02,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 575 proven. 222 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-11-21 17:23:02,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:02,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667728398] [2022-11-21 17:23:02,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667728398] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:02,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690925315] [2022-11-21 17:23:02,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:02,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:02,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:02,433 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:23:02,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 17:23:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:02,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:23:02,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:03,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1912 backedges. 797 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-11-21 17:23:03,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:23:03,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690925315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:03,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:03,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-21 17:23:03,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883168695] [2022-11-21 17:23:03,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:03,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:23:03,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:03,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:23:03,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:03,050 INFO L87 Difference]: Start difference. First operand 6768 states and 7242 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2022-11-21 17:23:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:03,830 INFO L93 Difference]: Finished difference Result 13712 states and 14663 transitions. [2022-11-21 17:23:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:23:03,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 803 [2022-11-21 17:23:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:03,848 INFO L225 Difference]: With dead ends: 13712 [2022-11-21 17:23:03,848 INFO L226 Difference]: Without dead ends: 7124 [2022-11-21 17:23:03,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 803 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:03,855 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:03,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 245 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 17:23:03,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-21 17:23:03,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6412. [2022-11-21 17:23:03,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6412 states, 6411 states have (on average 1.0627047262517548) internal successors, (6813), 6411 states have internal predecessors, (6813), 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) [2022-11-21 17:23:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6813 transitions. [2022-11-21 17:23:03,989 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6813 transitions. Word has length 803 [2022-11-21 17:23:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:03,991 INFO L495 AbstractCegarLoop]: Abstraction has 6412 states and 6813 transitions. [2022-11-21 17:23:03,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2022-11-21 17:23:03,991 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6813 transitions. [2022-11-21 17:23:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2022-11-21 17:23:04,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:04,024 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:04,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-21 17:23:04,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-21 17:23:04,225 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:04,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash 580335584, now seen corresponding path program 1 times [2022-11-21 17:23:04,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:04,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038001914] [2022-11-21 17:23:04,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:04,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:05,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2218 backedges. 1202 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-11-21 17:23:05,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:05,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038001914] [2022-11-21 17:23:05,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038001914] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:05,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257607710] [2022-11-21 17:23:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:05,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:05,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:05,898 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:23:05,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 17:23:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:06,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 17:23:06,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:06,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2218 backedges. 915 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-11-21 17:23:06,667 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:23:06,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257607710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:06,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:06,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2022-11-21 17:23:06,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292385466] [2022-11-21 17:23:06,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:06,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:23:06,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:06,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:23:06,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:06,671 INFO L87 Difference]: Start difference. First operand 6412 states and 6813 transitions. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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) [2022-11-21 17:23:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:07,786 INFO L93 Difference]: Finished difference Result 13356 states and 14190 transitions. [2022-11-21 17:23:07,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:23:07,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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 834 [2022-11-21 17:23:07,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:07,800 INFO L225 Difference]: With dead ends: 13356 [2022-11-21 17:23:07,800 INFO L226 Difference]: Without dead ends: 7124 [2022-11-21 17:23:07,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 833 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:07,806 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 180 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:07,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 59 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-21 17:23:07,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-21 17:23:07,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6412. [2022-11-21 17:23:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6412 states, 6411 states have (on average 1.0627047262517548) internal successors, (6813), 6411 states have internal predecessors, (6813), 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) [2022-11-21 17:23:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6813 transitions. [2022-11-21 17:23:07,936 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6813 transitions. Word has length 834 [2022-11-21 17:23:07,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:07,937 INFO L495 AbstractCegarLoop]: Abstraction has 6412 states and 6813 transitions. [2022-11-21 17:23:07,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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) [2022-11-21 17:23:07,938 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6813 transitions. [2022-11-21 17:23:07,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2022-11-21 17:23:07,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:07,948 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:07,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-21 17:23:08,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:08,156 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:08,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:08,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1968437427, now seen corresponding path program 1 times [2022-11-21 17:23:08,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:08,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132049787] [2022-11-21 17:23:08,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:08,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:10,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2219 backedges. 1203 proven. 72 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2022-11-21 17:23:10,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:10,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132049787] [2022-11-21 17:23:10,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132049787] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:10,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364204459] [2022-11-21 17:23:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:10,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:10,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:10,193 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:23:10,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-21 17:23:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:10,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 17:23:10,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2219 backedges. 1305 proven. 523 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-11-21 17:23:13,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:23:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2219 backedges. 916 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2022-11-21 17:23:14,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364204459] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:14,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:23:14,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 6] total 9 [2022-11-21 17:23:14,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37014633] [2022-11-21 17:23:14,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:14,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:23:14,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:14,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:23:14,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:23:14,386 INFO L87 Difference]: Start difference. First operand 6412 states and 6813 transitions. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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) [2022-11-21 17:23:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:15,392 INFO L93 Difference]: Finished difference Result 13178 states and 14027 transitions. [2022-11-21 17:23:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:23:15,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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 835 [2022-11-21 17:23:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:15,407 INFO L225 Difference]: With dead ends: 13178 [2022-11-21 17:23:15,407 INFO L226 Difference]: Without dead ends: 6946 [2022-11-21 17:23:15,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1673 GetRequests, 1666 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:23:15,413 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 233 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:15,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 10 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-21 17:23:15,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2022-11-21 17:23:15,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 6590. [2022-11-21 17:23:15,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0634390651085142) internal successors, (7007), 6589 states have internal predecessors, (7007), 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) [2022-11-21 17:23:15,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 7007 transitions. [2022-11-21 17:23:15,547 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 7007 transitions. Word has length 835 [2022-11-21 17:23:15,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:15,548 INFO L495 AbstractCegarLoop]: Abstraction has 6590 states and 7007 transitions. [2022-11-21 17:23:15,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 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) [2022-11-21 17:23:15,549 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 7007 transitions. [2022-11-21 17:23:15,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 888 [2022-11-21 17:23:15,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:15,559 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 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, 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] [2022-11-21 17:23:15,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-21 17:23:15,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:15,767 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:15,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:15,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1839900235, now seen corresponding path program 1 times [2022-11-21 17:23:15,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:15,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88020164] [2022-11-21 17:23:15,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:15,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2419 backedges. 1432 proven. 0 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-11-21 17:23:16,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:16,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88020164] [2022-11-21 17:23:16,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88020164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:16,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:16,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:23:16,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029075987] [2022-11-21 17:23:16,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:16,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:23:16,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:16,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:23:16,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:23:16,795 INFO L87 Difference]: Start difference. First operand 6590 states and 7007 transitions. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2022-11-21 17:23:17,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:17,468 INFO L93 Difference]: Finished difference Result 13000 states and 13833 transitions. [2022-11-21 17:23:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:23:17,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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 887 [2022-11-21 17:23:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:17,482 INFO L225 Difference]: With dead ends: 13000 [2022-11-21 17:23:17,483 INFO L226 Difference]: Without dead ends: 6590 [2022-11-21 17:23:17,488 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 [2022-11-21 17:23:17,489 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 24 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:17,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 226 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:23:17,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2022-11-21 17:23:17,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6412. [2022-11-21 17:23:17,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6412 states, 6411 states have (on average 1.0586491966931837) internal successors, (6787), 6411 states have internal predecessors, (6787), 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) [2022-11-21 17:23:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6412 states to 6412 states and 6787 transitions. [2022-11-21 17:23:17,609 INFO L78 Accepts]: Start accepts. Automaton has 6412 states and 6787 transitions. Word has length 887 [2022-11-21 17:23:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:17,610 INFO L495 AbstractCegarLoop]: Abstraction has 6412 states and 6787 transitions. [2022-11-21 17:23:17,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2022-11-21 17:23:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 6412 states and 6787 transitions. [2022-11-21 17:23:17,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 962 [2022-11-21 17:23:17,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:17,623 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 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, 3, 3, 3, 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] [2022-11-21 17:23:17,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 17:23:17,624 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:17,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:17,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1233679576, now seen corresponding path program 1 times [2022-11-21 17:23:17,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:17,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234634497] [2022-11-21 17:23:17,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:17,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:17,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:19,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 950 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-11-21 17:23:19,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:19,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234634497] [2022-11-21 17:23:19,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234634497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:19,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:19,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:23:19,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281916780] [2022-11-21 17:23:19,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:19,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:23:19,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:19,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:23:19,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:23:19,080 INFO L87 Difference]: Start difference. First operand 6412 states and 6787 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2022-11-21 17:23:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:20,207 INFO L93 Difference]: Finished difference Result 15670 states and 16671 transitions. [2022-11-21 17:23:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:23:20,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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 961 [2022-11-21 17:23:20,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:20,222 INFO L225 Difference]: With dead ends: 15670 [2022-11-21 17:23:20,222 INFO L226 Difference]: Without dead ends: 9438 [2022-11-21 17:23:20,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:23:20,229 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 222 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:20,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 31 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-21 17:23:20,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2022-11-21 17:23:20,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 8192. [2022-11-21 17:23:20,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8192 states, 8191 states have (on average 1.0691002319619094) internal successors, (8757), 8191 states have internal predecessors, (8757), 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) [2022-11-21 17:23:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8192 states to 8192 states and 8757 transitions. [2022-11-21 17:23:20,399 INFO L78 Accepts]: Start accepts. Automaton has 8192 states and 8757 transitions. Word has length 961 [2022-11-21 17:23:20,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:20,400 INFO L495 AbstractCegarLoop]: Abstraction has 8192 states and 8757 transitions. [2022-11-21 17:23:20,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 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) [2022-11-21 17:23:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 8192 states and 8757 transitions. [2022-11-21 17:23:20,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 995 [2022-11-21 17:23:20,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:20,417 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2022-11-21 17:23:20,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 17:23:20,417 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:20,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:20,418 INFO L85 PathProgramCache]: Analyzing trace with hash 992798614, now seen corresponding path program 1 times [2022-11-21 17:23:20,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:20,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502169709] [2022-11-21 17:23:20,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:20,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2803 backedges. 713 proven. 339 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-11-21 17:23:21,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:21,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502169709] [2022-11-21 17:23:21,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502169709] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:21,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294683859] [2022-11-21 17:23:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:21,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:21,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:21,783 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:23:21,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-21 17:23:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:22,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:23:22,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:22,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2803 backedges. 1052 proven. 0 refuted. 0 times theorem prover too weak. 1751 trivial. 0 not checked. [2022-11-21 17:23:22,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:23:22,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294683859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:22,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:22,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-21 17:23:22,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840628085] [2022-11-21 17:23:22,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:22,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:23:22,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:22,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:23:22,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:22,435 INFO L87 Difference]: Start difference. First operand 8192 states and 8757 transitions. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2022-11-21 17:23:23,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:23,153 INFO L93 Difference]: Finished difference Result 16382 states and 17512 transitions. [2022-11-21 17:23:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:23:23,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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 994 [2022-11-21 17:23:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:23,161 INFO L225 Difference]: With dead ends: 16382 [2022-11-21 17:23:23,161 INFO L226 Difference]: Without dead ends: 8370 [2022-11-21 17:23:23,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 997 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:23,166 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 36 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:23,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 244 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:23:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2022-11-21 17:23:23,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 7836. [2022-11-21 17:23:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7836 states, 7835 states have (on average 1.0544990427568603) internal successors, (8262), 7835 states have internal predecessors, (8262), 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) [2022-11-21 17:23:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 8262 transitions. [2022-11-21 17:23:23,313 INFO L78 Accepts]: Start accepts. Automaton has 7836 states and 8262 transitions. Word has length 994 [2022-11-21 17:23:23,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:23,314 INFO L495 AbstractCegarLoop]: Abstraction has 7836 states and 8262 transitions. [2022-11-21 17:23:23,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2022-11-21 17:23:23,314 INFO L276 IsEmpty]: Start isEmpty. Operand 7836 states and 8262 transitions. [2022-11-21 17:23:23,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2022-11-21 17:23:23,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:23,328 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 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] [2022-11-21 17:23:23,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-21 17:23:23,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-21 17:23:23,534 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:23,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:23,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2112499227, now seen corresponding path program 1 times [2022-11-21 17:23:23,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:23,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718695107] [2022-11-21 17:23:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:23,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3693 backedges. 1719 proven. 0 refuted. 0 times theorem prover too weak. 1974 trivial. 0 not checked. [2022-11-21 17:23:24,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:24,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718695107] [2022-11-21 17:23:24,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718695107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:24,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:24,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:23:24,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507145962] [2022-11-21 17:23:24,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:24,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:23:24,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:24,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:23:24,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:24,593 INFO L87 Difference]: Start difference. First operand 7836 states and 8262 transitions. Second operand has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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) [2022-11-21 17:23:25,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:25,370 INFO L93 Difference]: Finished difference Result 14646 states and 15424 transitions. [2022-11-21 17:23:25,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:23:25,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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 1008 [2022-11-21 17:23:25,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:25,377 INFO L225 Difference]: With dead ends: 14646 [2022-11-21 17:23:25,377 INFO L226 Difference]: Without dead ends: 6719 [2022-11-21 17:23:25,380 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 [2022-11-21 17:23:25,381 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 104 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:25,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 23 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-21 17:23:25,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6719 states. [2022-11-21 17:23:25,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6719 to 6633. [2022-11-21 17:23:25,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 1.0455367913148372) internal successors, (6934), 6632 states have internal predecessors, (6934), 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) [2022-11-21 17:23:25,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 6934 transitions. [2022-11-21 17:23:25,507 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 6934 transitions. Word has length 1008 [2022-11-21 17:23:25,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:25,508 INFO L495 AbstractCegarLoop]: Abstraction has 6633 states and 6934 transitions. [2022-11-21 17:23:25,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 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) [2022-11-21 17:23:25,508 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 6934 transitions. [2022-11-21 17:23:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2022-11-21 17:23:25,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:25,525 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 3, 3, 3, 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] [2022-11-21 17:23:25,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 17:23:25,526 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:25,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1181085489, now seen corresponding path program 1 times [2022-11-21 17:23:25,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:25,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404764677] [2022-11-21 17:23:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:25,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:26,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3428 backedges. 1231 proven. 390 refuted. 0 times theorem prover too weak. 1807 trivial. 0 not checked. [2022-11-21 17:23:26,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:26,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404764677] [2022-11-21 17:23:26,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404764677] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:26,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510368565] [2022-11-21 17:23:26,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:26,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:26,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:26,987 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:23:26,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-21 17:23:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:27,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 17:23:27,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:29,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3428 backedges. 992 proven. 0 refuted. 0 times theorem prover too weak. 2436 trivial. 0 not checked. [2022-11-21 17:23:29,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:23:29,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510368565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:29,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:29,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-21 17:23:29,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013174407] [2022-11-21 17:23:29,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:29,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:23:29,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:23:29,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:29,038 INFO L87 Difference]: Start difference. First operand 6633 states and 6934 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 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) [2022-11-21 17:23:29,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:29,597 INFO L93 Difference]: Finished difference Result 14688 states and 15322 transitions. [2022-11-21 17:23:29,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:23:29,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 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 1058 [2022-11-21 17:23:29,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:29,607 INFO L225 Difference]: With dead ends: 14688 [2022-11-21 17:23:29,607 INFO L226 Difference]: Without dead ends: 8235 [2022-11-21 17:23:29,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1062 GetRequests, 1057 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:23:29,612 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:29,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 52 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:23:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8235 states. [2022-11-21 17:23:29,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8235 to 6811. [2022-11-21 17:23:29,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6811 states, 6810 states have (on average 1.0449339207048458) internal successors, (7116), 6810 states have internal predecessors, (7116), 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) [2022-11-21 17:23:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6811 states to 6811 states and 7116 transitions. [2022-11-21 17:23:29,757 INFO L78 Accepts]: Start accepts. Automaton has 6811 states and 7116 transitions. Word has length 1058 [2022-11-21 17:23:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:29,758 INFO L495 AbstractCegarLoop]: Abstraction has 6811 states and 7116 transitions. [2022-11-21 17:23:29,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 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) [2022-11-21 17:23:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 6811 states and 7116 transitions. [2022-11-21 17:23:29,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1394 [2022-11-21 17:23:29,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:29,781 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:29,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-21 17:23:29,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:29,995 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:29,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:29,996 INFO L85 PathProgramCache]: Analyzing trace with hash 960342611, now seen corresponding path program 1 times [2022-11-21 17:23:29,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:29,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410675608] [2022-11-21 17:23:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:29,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5988 backedges. 1412 proven. 0 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-11-21 17:23:31,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:31,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410675608] [2022-11-21 17:23:31,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410675608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:31,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:31,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:23:31,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152427680] [2022-11-21 17:23:31,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:31,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:23:31,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:31,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:23:31,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:23:31,456 INFO L87 Difference]: Start difference. First operand 6811 states and 7116 transitions. Second operand has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 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) [2022-11-21 17:23:32,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:32,608 INFO L93 Difference]: Finished difference Result 13466 states and 14075 transitions. [2022-11-21 17:23:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:23:32,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 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 1393 [2022-11-21 17:23:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:32,618 INFO L225 Difference]: With dead ends: 13466 [2022-11-21 17:23:32,618 INFO L226 Difference]: Without dead ends: 6811 [2022-11-21 17:23:32,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:23:32,624 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 145 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:32,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 27 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-21 17:23:32,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6811 states. [2022-11-21 17:23:32,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6811 to 6811. [2022-11-21 17:23:32,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6811 states, 6810 states have (on average 1.0434654919236417) internal successors, (7106), 6810 states have internal predecessors, (7106), 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) [2022-11-21 17:23:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6811 states to 6811 states and 7106 transitions. [2022-11-21 17:23:32,758 INFO L78 Accepts]: Start accepts. Automaton has 6811 states and 7106 transitions. Word has length 1393 [2022-11-21 17:23:32,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:32,759 INFO L495 AbstractCegarLoop]: Abstraction has 6811 states and 7106 transitions. [2022-11-21 17:23:32,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 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) [2022-11-21 17:23:32,760 INFO L276 IsEmpty]: Start isEmpty. Operand 6811 states and 7106 transitions. [2022-11-21 17:23:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1512 [2022-11-21 17:23:32,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:32,783 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 7, 7, 7, 6, 6, 6, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:32,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-21 17:23:32,784 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:32,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1140105243, now seen corresponding path program 1 times [2022-11-21 17:23:32,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:32,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113339633] [2022-11-21 17:23:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:32,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 7218 backedges. 822 proven. 819 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-11-21 17:23:33,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:33,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113339633] [2022-11-21 17:23:33,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113339633] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:23:33,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176404583] [2022-11-21 17:23:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:33,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:23:33,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:23:33,927 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:23:33,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-21 17:23:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:34,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 1849 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:23:34,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:23:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7218 backedges. 1641 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-11-21 17:23:34,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:23:34,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176404583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:34,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:23:34,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-21 17:23:34,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845784901] [2022-11-21 17:23:34,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:34,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:23:34,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:34,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:23:34,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:34,680 INFO L87 Difference]: Start difference. First operand 6811 states and 7106 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 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) [2022-11-21 17:23:35,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:35,289 INFO L93 Difference]: Finished difference Result 14688 states and 15290 transitions. [2022-11-21 17:23:35,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:23:35,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 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) Word has length 1511 [2022-11-21 17:23:35,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:35,294 INFO L225 Difference]: With dead ends: 14688 [2022-11-21 17:23:35,294 INFO L226 Difference]: Without dead ends: 5209 [2022-11-21 17:23:35,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1514 GetRequests, 1510 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:23:35,299 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:35,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 233 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:23:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2022-11-21 17:23:35,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 4675. [2022-11-21 17:23:35,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4675 states, 4674 states have (on average 1.0295250320924263) internal successors, (4812), 4674 states have internal predecessors, (4812), 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) [2022-11-21 17:23:35,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4675 states to 4675 states and 4812 transitions. [2022-11-21 17:23:35,372 INFO L78 Accepts]: Start accepts. Automaton has 4675 states and 4812 transitions. Word has length 1511 [2022-11-21 17:23:35,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:35,373 INFO L495 AbstractCegarLoop]: Abstraction has 4675 states and 4812 transitions. [2022-11-21 17:23:35,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 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) [2022-11-21 17:23:35,374 INFO L276 IsEmpty]: Start isEmpty. Operand 4675 states and 4812 transitions. [2022-11-21 17:23:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1755 [2022-11-21 17:23:35,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:35,406 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:35,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-21 17:23:35,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-21 17:23:35,613 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:35,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:35,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1349051158, now seen corresponding path program 1 times [2022-11-21 17:23:35,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:35,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587591325] [2022-11-21 17:23:35,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:35,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:37,198 INFO L134 CoverageAnalysis]: Checked inductivity of 9921 backedges. 3134 proven. 0 refuted. 0 times theorem prover too weak. 6787 trivial. 0 not checked. [2022-11-21 17:23:37,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:37,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587591325] [2022-11-21 17:23:37,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587591325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:37,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:37,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:23:37,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762861704] [2022-11-21 17:23:37,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:37,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:23:37,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:37,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:23:37,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:23:37,202 INFO L87 Difference]: Start difference. First operand 4675 states and 4812 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 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) [2022-11-21 17:23:37,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:37,820 INFO L93 Difference]: Finished difference Result 9192 states and 9467 transitions. [2022-11-21 17:23:37,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:23:37,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 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 1754 [2022-11-21 17:23:37,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:37,824 INFO L225 Difference]: With dead ends: 9192 [2022-11-21 17:23:37,824 INFO L226 Difference]: Without dead ends: 4853 [2022-11-21 17:23:37,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:23:37,828 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 20 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:37,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 17 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-21 17:23:37,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2022-11-21 17:23:37,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4675. [2022-11-21 17:23:37,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4675 states, 4674 states have (on average 1.0282413350449293) internal successors, (4806), 4674 states have internal predecessors, (4806), 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) [2022-11-21 17:23:37,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4675 states to 4675 states and 4806 transitions. [2022-11-21 17:23:37,885 INFO L78 Accepts]: Start accepts. Automaton has 4675 states and 4806 transitions. Word has length 1754 [2022-11-21 17:23:37,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:37,887 INFO L495 AbstractCegarLoop]: Abstraction has 4675 states and 4806 transitions. [2022-11-21 17:23:37,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 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) [2022-11-21 17:23:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand 4675 states and 4806 transitions. [2022-11-21 17:23:37,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1833 [2022-11-21 17:23:37,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:23:37,915 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:23:37,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-21 17:23:37,915 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:23:37,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:23:37,916 INFO L85 PathProgramCache]: Analyzing trace with hash -382520307, now seen corresponding path program 1 times [2022-11-21 17:23:37,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:23:37,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121030897] [2022-11-21 17:23:37,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:23:37,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:23:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:23:39,223 INFO L134 CoverageAnalysis]: Checked inductivity of 11114 backedges. 6236 proven. 0 refuted. 0 times theorem prover too weak. 4878 trivial. 0 not checked. [2022-11-21 17:23:39,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:23:39,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121030897] [2022-11-21 17:23:39,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121030897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:23:39,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:23:39,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:23:39,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215931288] [2022-11-21 17:23:39,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:23:39,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:23:39,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:23:39,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:23:39,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:23:39,226 INFO L87 Difference]: Start difference. First operand 4675 states and 4806 transitions. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 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) [2022-11-21 17:23:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:23:39,729 INFO L93 Difference]: Finished difference Result 8769 states and 9017 transitions. [2022-11-21 17:23:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:23:39,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 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) Word has length 1832 [2022-11-21 17:23:39,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:23:39,731 INFO L225 Difference]: With dead ends: 8769 [2022-11-21 17:23:39,731 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:23:39,734 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 [2022-11-21 17:23:39,735 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:23:39,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 201 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:23:39,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:23:39,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:23:39,736 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) [2022-11-21 17:23:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:23:39,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1832 [2022-11-21 17:23:39,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:23:39,737 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:23:39,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 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) [2022-11-21 17:23:39,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:23:39,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:23:39,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:23:39,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-21 17:23:39,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:23:47,794 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-11-21 17:23:47,794 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-11-21 17:23:47,795 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-11-21 17:23:47,796 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,797 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,798 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,798 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-11-21 17:23:47,798 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-11-21 17:23:47,798 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-11-21 17:23:47,798 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-11-21 17:23:47,798 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-11-21 17:23:47,798 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-11-21 17:23:47,798 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-11-21 17:23:47,799 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-11-21 17:23:47,800 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-11-21 17:23:47,800 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-11-21 17:23:47,800 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-11-21 17:23:47,800 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,800 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,800 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,800 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-11-21 17:23:47,801 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-11-21 17:23:47,802 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-11-21 17:23:47,802 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-11-21 17:23:47,802 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-11-21 17:23:47,802 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-11-21 17:23:47,802 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-11-21 17:23:47,802 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:23:47,802 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,802 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,803 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,803 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-11-21 17:23:47,803 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-11-21 17:23:47,803 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-11-21 17:23:47,803 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-11-21 17:23:47,803 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-11-21 17:23:47,803 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-21 17:23:47,804 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:23:47,805 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 149) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,806 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,807 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,808 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-11-21 17:23:47,809 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-11-21 17:23:47,810 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-11-21 17:23:47,810 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-11-21 17:23:47,810 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-11-21 17:23:47,810 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-11-21 17:23:47,810 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-11-21 17:23:47,810 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-11-21 17:23:47,810 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,811 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,811 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,811 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-11-21 17:23:47,811 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-11-21 17:23:47,811 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-11-21 17:23:47,811 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-11-21 17:23:47,811 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-11-21 17:23:47,812 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-11-21 17:23:47,812 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-11-21 17:23:47,812 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-11-21 17:23:47,812 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,812 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,812 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-11-21 17:23:47,812 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-11-21 17:23:47,813 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-11-21 17:23:47,813 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-11-21 17:23:47,813 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-11-21 17:23:47,813 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-11-21 17:23:47,813 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-11-21 17:23:47,813 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-11-21 17:23:47,813 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,814 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,814 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-11-21 17:23:47,814 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:23:47,814 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-11-21 17:23:47,814 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-11-21 17:23:47,814 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-11-21 17:23:47,814 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-11-21 17:23:47,815 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-11-21 17:23:47,815 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,815 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,815 INFO L895 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse6 (<= ~a21~0 8)) (.cse12 (<= 6 ~a15~0)) (.cse14 (<= ~a21~0 6)) (.cse13 (= ~a21~0 6)) (.cse8 (<= ~a15~0 7)) (.cse5 (<= 8 ~a21~0)) (.cse11 (< (div (+ (- 562768) (div (* ~a12~0 9) 10)) 5) 12)) (.cse15 (<= ~a12~0 11)) (.cse2 (<= ~a15~0 8)) (.cse0 (<= 9 ~a21~0)) (.cse7 (<= 7 ~a21~0)) (.cse9 (<= ~a21~0 7)) (.cse3 (<= (+ 49 ~a12~0) 0)) (.cse1 (= ~a24~0 1)) (.cse4 (<= 9 ~a15~0)) (.cse10 (<= 0 (+ ~a12~0 42)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse5 .cse6 (<= (+ ~a12~0 355062) 0)) (and .cse1 .cse7 .cse2 (<= ~a12~0 76) .cse8 .cse9 .cse10) (and .cse1 .cse7 .cse4 .cse11 .cse10) (and (<= ~a12~0 73282) .cse1 .cse5 .cse6 .cse10) (and .cse12 .cse1 .cse7 .cse2 .cse8 .cse9 .cse11) (and .cse1 (or (and .cse12 .cse2) (and .cse2 (not .cse13))) .cse14 .cse11 .cse10) (and .cse15 .cse2 .cse14 .cse8) (and .cse1 (= 5 ~a15~0) .cse13 (<= 526013 ~a12~0) .cse11) (and .cse1 .cse11 (<= 10 ~a21~0)) (and .cse1 .cse8 .cse5 .cse11) (and .cse15 .cse1 .cse2 (not (<= (+ ~a12~0 43) 0))) (and .cse0 .cse1 .cse10 (not (< 80 ~a12~0))) (and .cse1 .cse7 .cse9 .cse3 (= ~a15~0 8)) (and .cse1 .cse4 .cse10 (<= ~a12~0 225871)))) [2022-11-21 17:23:47,816 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-11-21 17:23:47,816 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-11-21 17:23:47,816 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-11-21 17:23:47,816 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-11-21 17:23:47,816 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-11-21 17:23:47,816 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-11-21 17:23:47,816 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-11-21 17:23:47,817 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-11-21 17:23:47,817 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,817 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,817 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-11-21 17:23:47,817 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-11-21 17:23:47,817 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-11-21 17:23:47,818 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-11-21 17:23:47,818 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-11-21 17:23:47,818 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-11-21 17:23:47,818 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-11-21 17:23:47,818 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-11-21 17:23:47,818 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,818 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:23:47,819 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-11-21 17:23:47,819 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-11-21 17:23:47,819 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-11-21 17:23:47,819 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-11-21 17:23:47,819 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-11-21 17:23:47,819 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-11-21 17:23:47,820 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,820 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,820 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-11-21 17:23:47,820 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,820 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-11-21 17:23:47,821 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse6 (<= ~a21~0 8)) (.cse12 (<= 6 ~a15~0)) (.cse14 (<= ~a21~0 6)) (.cse13 (= ~a21~0 6)) (.cse8 (<= ~a15~0 7)) (.cse5 (<= 8 ~a21~0)) (.cse11 (< (div (+ (- 562768) (div (* ~a12~0 9) 10)) 5) 12)) (.cse15 (<= ~a12~0 11)) (.cse2 (<= ~a15~0 8)) (.cse0 (<= 9 ~a21~0)) (.cse7 (<= 7 ~a21~0)) (.cse9 (<= ~a21~0 7)) (.cse3 (<= (+ 49 ~a12~0) 0)) (.cse1 (= ~a24~0 1)) (.cse4 (<= 9 ~a15~0)) (.cse10 (<= 0 (+ ~a12~0 42)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse4 .cse5 .cse6 (<= (+ ~a12~0 355062) 0)) (and .cse1 .cse7 .cse2 (<= ~a12~0 76) .cse8 .cse9 .cse10) (and .cse1 .cse7 .cse4 .cse11 .cse10) (and (<= ~a12~0 73282) .cse1 .cse5 .cse6 .cse10) (and .cse12 .cse1 .cse7 .cse2 .cse8 .cse9 .cse11) (and .cse1 (or (and .cse12 .cse2) (and .cse2 (not .cse13))) .cse14 .cse11 .cse10) (and .cse15 .cse2 .cse14 .cse8) (and .cse1 (= 5 ~a15~0) .cse13 (<= 526013 ~a12~0) .cse11) (and .cse1 .cse11 (<= 10 ~a21~0)) (and .cse1 .cse8 .cse5 .cse11) (and .cse15 .cse1 .cse2 (not (<= (+ ~a12~0 43) 0))) (and .cse0 .cse1 .cse10 (not (< 80 ~a12~0))) (and .cse1 .cse7 .cse9 .cse3 (= ~a15~0 8)) (and .cse1 .cse4 .cse10 (<= ~a12~0 225871)))) [2022-11-21 17:23:47,821 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-11-21 17:23:47,821 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-11-21 17:23:47,821 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-11-21 17:23:47,821 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-11-21 17:23:47,821 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-21 17:23:47,821 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-11-21 17:23:47,822 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-11-21 17:23:47,822 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-11-21 17:23:47,822 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-11-21 17:23:47,822 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,822 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,822 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-11-21 17:23:47,822 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-11-21 17:23:47,823 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-11-21 17:23:47,823 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-11-21 17:23:47,823 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-21 17:23:47,826 INFO L444 BasicCegarLoop]: Path program 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] [2022-11-21 17:23:47,829 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:23:47,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:23:47 BoogieIcfgContainer [2022-11-21 17:23:47,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:23:47,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:23:47,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:23:47,866 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:23:47,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:22:25" (3/4) ... [2022-11-21 17:23:47,870 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:23:47,895 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 17:23:47,904 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 17:23:47,905 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:23:47,906 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:23:48,049 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:23:48,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:23:48,051 INFO L158 Benchmark]: Toolchain (without parser) took 84968.53ms. Allocated memory was 176.2MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 140.3MB in the beginning and 561.4MB in the end (delta: -421.0MB). Peak memory consumption was 834.1MB. Max. memory is 16.1GB. [2022-11-21 17:23:48,051 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 176.2MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:23:48,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 808.25ms. Allocated memory is still 176.2MB. Free memory was 139.8MB in the beginning and 107.2MB in the end (delta: 32.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-21 17:23:48,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.65ms. Allocated memory is still 176.2MB. Free memory was 107.2MB in the beginning and 97.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 17:23:48,054 INFO L158 Benchmark]: Boogie Preprocessor took 114.44ms. Allocated memory is still 176.2MB. Free memory was 97.3MB in the beginning and 91.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 17:23:48,054 INFO L158 Benchmark]: RCFGBuilder took 1738.70ms. Allocated memory was 176.2MB in the beginning and 220.2MB in the end (delta: 44.0MB). Free memory was 91.0MB in the beginning and 105.3MB in the end (delta: -14.4MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-11-21 17:23:48,055 INFO L158 Benchmark]: TraceAbstraction took 82003.35ms. Allocated memory was 220.2MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 104.3MB in the beginning and 574.0MB in the end (delta: -469.7MB). Peak memory consumption was 798.2MB. Max. memory is 16.1GB. [2022-11-21 17:23:48,057 INFO L158 Benchmark]: Witness Printer took 183.80ms. Allocated memory is still 1.4GB. Free memory was 574.0MB in the beginning and 561.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 17:23:48,065 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 176.2MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 808.25ms. Allocated memory is still 176.2MB. Free memory was 139.8MB in the beginning and 107.2MB in the end (delta: 32.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.65ms. Allocated memory is still 176.2MB. Free memory was 107.2MB in the beginning and 97.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.44ms. Allocated memory is still 176.2MB. Free memory was 97.3MB in the beginning and 91.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1738.70ms. Allocated memory was 176.2MB in the beginning and 220.2MB in the end (delta: 44.0MB). Free memory was 91.0MB in the beginning and 105.3MB in the end (delta: -14.4MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * TraceAbstraction took 82003.35ms. Allocated memory was 220.2MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 104.3MB in the beginning and 574.0MB in the end (delta: -469.7MB). Peak memory consumption was 798.2MB. Max. memory is 16.1GB. * Witness Printer took 183.80ms. Allocated memory is still 1.4GB. Free memory was 574.0MB in the beginning and 561.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. 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: 149]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 81.9s, OverallIterations: 28, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3175 SdHoareTripleChecker+Valid, 22.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3175 mSDsluCounter, 3037 SdHoareTripleChecker+Invalid, 18.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 1677 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16666 IncrementalHoareTripleChecker+Invalid, 18343 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1677 mSolverCounterUnsat, 2848 mSDtfsCounter, 16666 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11023 GetRequests, 10939 SyntacticMatches, 3 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8192occurred in iteration=21, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 28 MinimizatonAttempts, 10410 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 106 NumberOfFragments, 625 HoareAnnotationTreeSize, 3 FomulaSimplifications, 11732 FormulaSimplificationTreeSizeReduction, 4.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 56390 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 35.0s InterpolantComputationTime, 30927 NumberOfCodeBlocks, 30927 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 32354 ConstructedInterpolants, 43 QuantifiedInterpolants, 96030 SizeOfPredicates, 1 NumberOfNonLiveVariables, 11929 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 42 InterpolantComputations, 27 PerfectInterpolantSequences, 97972/101215 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: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((9 <= a21 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 355062 <= 0)) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || ((((a24 == 1 && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 < 12) && 0 <= a12 + 42)) || ((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42)) || ((((((6 <= a15 && a24 == 1) && 7 <= a21) && a15 <= 8) && a15 <= 7) && a21 <= 7) && (-562768 + a12 * 9 / 10) / 5 < 12)) || ((((a24 == 1 && ((6 <= a15 && a15 <= 8) || (a15 <= 8 && !(a21 == 6)))) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 < 12) && 0 <= a12 + 42)) || (((a12 <= 11 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || ((((a24 == 1 && 5 == a15) && a21 == 6) && 526013 <= a12) && (-562768 + a12 * 9 / 10) / 5 < 12)) || ((a24 == 1 && (-562768 + a12 * 9 / 10) / 5 < 12) && 10 <= a21)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && (-562768 + a12 * 9 / 10) / 5 < 12)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0))) || (((9 <= a21 && a24 == 1) && 0 <= a12 + 42) && !(80 < a12))) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((9 <= a21 && a24 == 1) && a15 <= 8) && 49 + a12 <= 0) || ((((a24 == 1 && 9 <= a15) && 8 <= a21) && a21 <= 8) && a12 + 355062 <= 0)) || ((((((a24 == 1 && 7 <= a21) && a15 <= 8) && a12 <= 76) && a15 <= 7) && a21 <= 7) && 0 <= a12 + 42)) || ((((a24 == 1 && 7 <= a21) && 9 <= a15) && (-562768 + a12 * 9 / 10) / 5 < 12) && 0 <= a12 + 42)) || ((((a12 <= 73282 && a24 == 1) && 8 <= a21) && a21 <= 8) && 0 <= a12 + 42)) || ((((((6 <= a15 && a24 == 1) && 7 <= a21) && a15 <= 8) && a15 <= 7) && a21 <= 7) && (-562768 + a12 * 9 / 10) / 5 < 12)) || ((((a24 == 1 && ((6 <= a15 && a15 <= 8) || (a15 <= 8 && !(a21 == 6)))) && a21 <= 6) && (-562768 + a12 * 9 / 10) / 5 < 12) && 0 <= a12 + 42)) || (((a12 <= 11 && a15 <= 8) && a21 <= 6) && a15 <= 7)) || ((((a24 == 1 && 5 == a15) && a21 == 6) && 526013 <= a12) && (-562768 + a12 * 9 / 10) / 5 < 12)) || ((a24 == 1 && (-562768 + a12 * 9 / 10) / 5 < 12) && 10 <= a21)) || (((a24 == 1 && a15 <= 7) && 8 <= a21) && (-562768 + a12 * 9 / 10) / 5 < 12)) || (((a12 <= 11 && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0))) || (((9 <= a21 && a24 == 1) && 0 <= a12 + 42) && !(80 < a12))) || ((((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) && a15 == 8)) || (((a24 == 1 && 9 <= a15) && 0 <= a12 + 42) && a12 <= 225871) RESULT: Ultimate proved your program to be correct! [2022-11-21 17:23:48,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3febbf21-bff8-4b68-b8e5-2e4da3c8aaae/bin/uautomizer-vX5HgA9Q3a/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