./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b9188b0bb7d345bde8858a6e4085c80a345a783efac7d50b39494fde4a7e156f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:30:09,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:30:09,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:30:09,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:30:09,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:30:09,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:30:09,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:30:09,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:30:09,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:30:09,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:30:09,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:30:09,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:30:09,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:30:09,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:30:09,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:30:09,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:30:09,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:30:09,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:30:09,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:30:09,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:30:09,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:30:09,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:30:09,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:30:09,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:30:09,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:30:09,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:30:09,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:30:09,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:30:09,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:30:09,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:30:09,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:30:09,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:30:09,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:30:09,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:30:09,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:30:09,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:30:09,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:30:09,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:30:09,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:30:09,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:30:09,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:30:09,658 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:30:09,686 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:30:09,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:30:09,687 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:30:09,687 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:30:09,688 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:30:09,688 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:30:09,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:30:09,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:30:09,689 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:30:09,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:30:09,690 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:30:09,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:30:09,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:30:09,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:30:09,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:30:09,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:30:09,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:30:09,692 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:30:09,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:30:09,692 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:30:09,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:30:09,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:30:09,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:30:09,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:30:09,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:09,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:30:09,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:30:09,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:30:09,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:30:09,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:30:09,695 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:30:09,695 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:30:09,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:30:09,696 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_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9188b0bb7d345bde8858a6e4085c80a345a783efac7d50b39494fde4a7e156f [2022-11-16 11:30:09,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:30:10,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:30:10,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:30:10,012 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:30:10,020 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:30:10,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2022-11-16 11:30:10,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/data/22f9011c8/8744c812084d4e138cb23264ea49d996/FLAGe0fa67b09 [2022-11-16 11:30:10,732 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:30:10,732 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2022-11-16 11:30:10,742 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/data/22f9011c8/8744c812084d4e138cb23264ea49d996/FLAGe0fa67b09 [2022-11-16 11:30:10,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/data/22f9011c8/8744c812084d4e138cb23264ea49d996 [2022-11-16 11:30:10,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:30:10,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:30:10,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:10,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:30:10,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:30:10,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:10" (1/1) ... [2022-11-16 11:30:10,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407b0231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:10, skipping insertion in model container [2022-11-16 11:30:10,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:30:10" (1/1) ... [2022-11-16 11:30:10,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:30:11,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:30:11,288 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2022-11-16 11:30:11,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:11,543 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:30:11,562 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/sv-benchmarks/c/eca-rers2012/Problem14_label51.c[3722,3735] [2022-11-16 11:30:11,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:30:11,761 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:30:11,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11 WrapperNode [2022-11-16 11:30:11,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:30:11,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:11,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:30:11,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:30:11,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,867 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-11-16 11:30:11,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:30:11,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:30:11,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:30:11,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:30:11,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,964 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:11,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:12,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:30:12,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:30:12,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:30:12,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:30:12,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (1/1) ... [2022-11-16 11:30:12,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:30:12,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:12,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:30:12,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:30:12,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:30:12,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:30:12,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:30:12,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:30:12,208 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:30:12,210 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:30:14,030 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:30:14,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:30:14,049 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:30:14,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:14 BoogieIcfgContainer [2022-11-16 11:30:14,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:30:14,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:30:14,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:30:14,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:30:14,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:30:10" (1/3) ... [2022-11-16 11:30:14,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7452619f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:14, skipping insertion in model container [2022-11-16 11:30:14,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:30:11" (2/3) ... [2022-11-16 11:30:14,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7452619f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:30:14, skipping insertion in model container [2022-11-16 11:30:14,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:14" (3/3) ... [2022-11-16 11:30:14,065 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2022-11-16 11:30:14,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:30:14,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:30:14,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:30:14,166 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;@98caca4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:30:14,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:30:14,172 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) [2022-11-16 11:30:14,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 11:30:14,181 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:14,182 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] [2022-11-16 11:30:14,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:14,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:14,188 INFO L85 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2022-11-16 11:30:14,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:14,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003596639] [2022-11-16 11:30:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:14,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:14,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:14,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:14,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003596639] [2022-11-16 11:30:14,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003596639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:14,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:14,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:30:14,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6301530] [2022-11-16 11:30:14,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:14,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:14,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:14,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:14,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:14,595 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 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:15,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:15,913 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2022-11-16 11:30:15,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:15,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-16 11:30:15,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:15,929 INFO L225 Difference]: With dead ends: 685 [2022-11-16 11:30:15,929 INFO L226 Difference]: Without dead ends: 360 [2022-11-16 11:30:15,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:15,945 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 183 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:15,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 139 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:30:15,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-16 11:30:16,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2022-11-16 11:30:16,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2022-11-16 11:30:16,038 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 35 [2022-11-16 11:30:16,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:16,039 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2022-11-16 11:30:16,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:16,040 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2022-11-16 11:30:16,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 11:30:16,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:16,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:16,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:30:16,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:16,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:16,051 INFO L85 PathProgramCache]: Analyzing trace with hash 183125839, now seen corresponding path program 1 times [2022-11-16 11:30:16,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:16,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564311190] [2022-11-16 11:30:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:16,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:16,721 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:16,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:16,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564311190] [2022-11-16 11:30:16,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564311190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:16,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:16,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:16,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791196151] [2022-11-16 11:30:16,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:16,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:16,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:16,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:16,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:30:16,728 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:18,056 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2022-11-16 11:30:18,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:30:18,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 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 114 [2022-11-16 11:30:18,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:18,060 INFO L225 Difference]: With dead ends: 1074 [2022-11-16 11:30:18,061 INFO L226 Difference]: Without dead ends: 716 [2022-11-16 11:30:18,062 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 [2022-11-16 11:30:18,063 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 419 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:18,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 121 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:30:18,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-11-16 11:30:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-11-16 11:30:18,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2022-11-16 11:30:18,098 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 114 [2022-11-16 11:30:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:18,098 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2022-11-16 11:30:18,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2022-11-16 11:30:18,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-16 11:30:18,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:18,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:18,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:30:18,102 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:18,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:18,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1801900176, now seen corresponding path program 1 times [2022-11-16 11:30:18,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:18,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813281762] [2022-11-16 11:30:18,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:18,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-16 11:30:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:18,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813281762] [2022-11-16 11:30:18,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813281762] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:18,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385326890] [2022-11-16 11:30:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:18,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:18,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:18,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:18,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:30:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:18,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:30:18,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:19,046 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-16 11:30:19,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:19,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385326890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:19,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:19,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2022-11-16 11:30:19,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033444520] [2022-11-16 11:30:19,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:19,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:19,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:19,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:19,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:30:19,058 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:19,873 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2022-11-16 11:30:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:19,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 140 [2022-11-16 11:30:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:19,878 INFO L225 Difference]: With dead ends: 1252 [2022-11-16 11:30:19,878 INFO L226 Difference]: Without dead ends: 1250 [2022-11-16 11:30:19,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:30:19,880 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:19,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 36 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:30:19,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-11-16 11:30:19,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2022-11-16 11:30:19,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2022-11-16 11:30:19,904 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 140 [2022-11-16 11:30:19,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:19,905 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2022-11-16 11:30:19,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:19,905 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2022-11-16 11:30:19,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-16 11:30:19,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:19,909 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:19,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:20,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:20,117 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:20,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:20,118 INFO L85 PathProgramCache]: Analyzing trace with hash 689274588, now seen corresponding path program 1 times [2022-11-16 11:30:20,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:20,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600948617] [2022-11-16 11:30:20,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:20,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:20,520 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 11:30:20,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:20,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600948617] [2022-11-16 11:30:20,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600948617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:20,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:20,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:20,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079349098] [2022-11-16 11:30:20,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:20,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:20,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:20,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:20,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:30:20,531 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:21,506 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2022-11-16 11:30:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:30:21,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 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 194 [2022-11-16 11:30:21,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:21,510 INFO L225 Difference]: With dead ends: 1993 [2022-11-16 11:30:21,510 INFO L226 Difference]: Without dead ends: 1072 [2022-11-16 11:30:21,511 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 [2022-11-16 11:30:21,512 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 104 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:21,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 121 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:30:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-11-16 11:30:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2022-11-16 11:30:21,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2022-11-16 11:30:21,536 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 194 [2022-11-16 11:30:21,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:21,537 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2022-11-16 11:30:21,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:21,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2022-11-16 11:30:21,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-16 11:30:21,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:21,540 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, 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, 1, 1] [2022-11-16 11:30:21,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:30:21,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:21,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:21,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1077711776, now seen corresponding path program 1 times [2022-11-16 11:30:21,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:21,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871424879] [2022-11-16 11:30:21,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:21,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 65 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:21,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:21,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871424879] [2022-11-16 11:30:21,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871424879] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:21,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914585981] [2022-11-16 11:30:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:21,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:21,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:21,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:21,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 11:30:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:22,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:30:22,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:22,433 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2022-11-16 11:30:22,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:22,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914585981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:22,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:22,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-16 11:30:22,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404762804] [2022-11-16 11:30:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:22,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:22,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:22,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:22,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:22,441 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:23,164 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2022-11-16 11:30:23,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:23,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 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 206 [2022-11-16 11:30:23,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:23,170 INFO L225 Difference]: With dead ends: 2320 [2022-11-16 11:30:23,170 INFO L226 Difference]: Without dead ends: 1250 [2022-11-16 11:30:23,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:23,172 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:23,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 47 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:30:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2022-11-16 11:30:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2022-11-16 11:30:23,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1671335200746966) internal successors, (1250), 1071 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2022-11-16 11:30:23,196 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 206 [2022-11-16 11:30:23,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:23,197 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2022-11-16 11:30:23,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:23,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2022-11-16 11:30:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-16 11:30:23,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:23,201 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, 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] [2022-11-16 11:30:23,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:23,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:23,406 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:23,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:23,407 INFO L85 PathProgramCache]: Analyzing trace with hash 732384967, now seen corresponding path program 1 times [2022-11-16 11:30:23,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:23,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747091914] [2022-11-16 11:30:23,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:23,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:30:23,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:23,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747091914] [2022-11-16 11:30:23,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747091914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:23,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:23,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:23,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818797895] [2022-11-16 11:30:23,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:23,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:23,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:23,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:23,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:23,735 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:24,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:24,432 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2022-11-16 11:30:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:24,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 209 [2022-11-16 11:30:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:24,439 INFO L225 Difference]: With dead ends: 2854 [2022-11-16 11:30:24,439 INFO L226 Difference]: Without dead ends: 1784 [2022-11-16 11:30:24,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:24,441 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:24,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:30:24,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2022-11-16 11:30:24,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2022-11-16 11:30:24,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.1364485981308412) internal successors, (1824), 1605 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:24,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1824 transitions. [2022-11-16 11:30:24,478 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1824 transitions. Word has length 209 [2022-11-16 11:30:24,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:24,479 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 1824 transitions. [2022-11-16 11:30:24,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:24,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1824 transitions. [2022-11-16 11:30:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-16 11:30:24,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:24,485 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, 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, 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] [2022-11-16 11:30:24,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:30:24,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:24,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1686277103, now seen corresponding path program 1 times [2022-11-16 11:30:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:24,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319624395] [2022-11-16 11:30:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:24,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-16 11:30:24,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:24,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319624395] [2022-11-16 11:30:24,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319624395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:24,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:24,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:24,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356096708] [2022-11-16 11:30:24,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:24,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:24,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:24,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:24,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:30:24,969 INFO L87 Difference]: Start difference. First operand 1606 states and 1824 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:25,784 INFO L93 Difference]: Finished difference Result 3268 states and 3727 transitions. [2022-11-16 11:30:25,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:30:25,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 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 326 [2022-11-16 11:30:25,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:25,791 INFO L225 Difference]: With dead ends: 3268 [2022-11-16 11:30:25,791 INFO L226 Difference]: Without dead ends: 1784 [2022-11-16 11:30:25,793 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 [2022-11-16 11:30:25,794 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:25,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 17 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:30:25,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2022-11-16 11:30:25,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1606. [2022-11-16 11:30:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1605 states have (on average 1.0909657320872275) internal successors, (1751), 1605 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1751 transitions. [2022-11-16 11:30:25,830 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1751 transitions. Word has length 326 [2022-11-16 11:30:25,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:25,831 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 1751 transitions. [2022-11-16 11:30:25,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:25,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1751 transitions. [2022-11-16 11:30:25,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-16 11:30:25,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:25,840 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, 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, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:25,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:30:25,840 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:25,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:25,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1156793849, now seen corresponding path program 1 times [2022-11-16 11:30:25,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:25,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664075442] [2022-11-16 11:30:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:25,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-16 11:30:26,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:26,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664075442] [2022-11-16 11:30:26,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664075442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:26,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:26,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:26,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253874419] [2022-11-16 11:30:26,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:26,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:26,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:26,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:26,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:26,564 INFO L87 Difference]: Start difference. First operand 1606 states and 1751 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:27,289 INFO L93 Difference]: Finished difference Result 3922 states and 4309 transitions. [2022-11-16 11:30:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 421 [2022-11-16 11:30:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:27,298 INFO L225 Difference]: With dead ends: 3922 [2022-11-16 11:30:27,298 INFO L226 Difference]: Without dead ends: 2496 [2022-11-16 11:30:27,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:27,303 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 110 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2022-11-16 11:30:27,303 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] [2022-11-16 11:30:27,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2022-11-16 11:30:27,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 1962. [2022-11-16 11:30:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1962 states, 1961 states have (on average 1.075981642019378) internal successors, (2110), 1961 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:27,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2110 transitions. [2022-11-16 11:30:27,353 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2110 transitions. Word has length 421 [2022-11-16 11:30:27,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:27,354 INFO L495 AbstractCegarLoop]: Abstraction has 1962 states and 2110 transitions. [2022-11-16 11:30:27,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2110 transitions. [2022-11-16 11:30:27,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-16 11:30:27,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:27,363 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:27,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:30:27,363 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:27,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:27,364 INFO L85 PathProgramCache]: Analyzing trace with hash 175456974, now seen corresponding path program 1 times [2022-11-16 11:30:27,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:27,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415678425] [2022-11-16 11:30:27,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:27,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:27,944 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-16 11:30:27,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:27,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415678425] [2022-11-16 11:30:27,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415678425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:27,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:27,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:27,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450654570] [2022-11-16 11:30:27,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:27,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:27,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:27,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:27,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:27,948 INFO L87 Difference]: Start difference. First operand 1962 states and 2110 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:28,649 INFO L93 Difference]: Finished difference Result 4456 states and 4861 transitions. [2022-11-16 11:30:28,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:28,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 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 428 [2022-11-16 11:30:28,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:28,658 INFO L225 Difference]: With dead ends: 4456 [2022-11-16 11:30:28,658 INFO L226 Difference]: Without dead ends: 2674 [2022-11-16 11:30:28,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:28,662 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 [2022-11-16 11:30:28,663 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] [2022-11-16 11:30:28,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2022-11-16 11:30:28,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2022-11-16 11:30:28,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 1.0819304152637486) internal successors, (2892), 2673 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2892 transitions. [2022-11-16 11:30:28,738 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2892 transitions. Word has length 428 [2022-11-16 11:30:28,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:28,739 INFO L495 AbstractCegarLoop]: Abstraction has 2674 states and 2892 transitions. [2022-11-16 11:30:28,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2892 transitions. [2022-11-16 11:30:28,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-11-16 11:30:28,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:28,749 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, 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, 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] [2022-11-16 11:30:28,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:30:28,750 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:28,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:28,750 INFO L85 PathProgramCache]: Analyzing trace with hash 75719335, now seen corresponding path program 1 times [2022-11-16 11:30:28,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:28,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056418677] [2022-11-16 11:30:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:28,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:29,245 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-16 11:30:29,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:29,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056418677] [2022-11-16 11:30:29,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056418677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:29,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:29,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:29,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442948932] [2022-11-16 11:30:29,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:29,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:29,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:29,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:29,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:29,249 INFO L87 Difference]: Start difference. First operand 2674 states and 2892 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:29,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:29,942 INFO L93 Difference]: Finished difference Result 6414 states and 7027 transitions. [2022-11-16 11:30:29,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:29,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 469 [2022-11-16 11:30:29,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:29,954 INFO L225 Difference]: With dead ends: 6414 [2022-11-16 11:30:29,954 INFO L226 Difference]: Without dead ends: 3920 [2022-11-16 11:30:29,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:29,958 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 [2022-11-16 11:30:29,959 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] [2022-11-16 11:30:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-11-16 11:30:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2022-11-16 11:30:30,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.077743474600056) internal successors, (3840), 3563 states have internal predecessors, (3840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:30,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3840 transitions. [2022-11-16 11:30:30,056 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3840 transitions. Word has length 469 [2022-11-16 11:30:30,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:30,057 INFO L495 AbstractCegarLoop]: Abstraction has 3564 states and 3840 transitions. [2022-11-16 11:30:30,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:30,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3840 transitions. [2022-11-16 11:30:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2022-11-16 11:30:30,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:30,073 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, 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, 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] [2022-11-16 11:30:30,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:30:30,074 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:30,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:30,075 INFO L85 PathProgramCache]: Analyzing trace with hash -480601995, now seen corresponding path program 1 times [2022-11-16 11:30:30,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:30,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52680399] [2022-11-16 11:30:30,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:30,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:31,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 1034 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-16 11:30:31,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:31,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52680399] [2022-11-16 11:30:31,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52680399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:31,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284700494] [2022-11-16 11:30:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:31,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:31,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:31,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:31,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 11:30:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:31,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:30:31,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:31,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-11-16 11:30:31,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:31,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284700494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:31,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:31,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-16 11:30:31,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192579110] [2022-11-16 11:30:31,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:31,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:31,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:31,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:31,559 INFO L87 Difference]: Start difference. First operand 3564 states and 3840 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) 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) [2022-11-16 11:30:32,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:32,148 INFO L93 Difference]: Finished difference Result 7660 states and 8269 transitions. [2022-11-16 11:30:32,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:32,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) 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 614 [2022-11-16 11:30:32,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:32,160 INFO L225 Difference]: With dead ends: 7660 [2022-11-16 11:30:32,160 INFO L226 Difference]: Without dead ends: 3564 [2022-11-16 11:30:32,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:32,165 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 146 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:32,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 247 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:30:32,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2022-11-16 11:30:32,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2022-11-16 11:30:32,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0723417524165888) internal successors, (3439), 3207 states have internal predecessors, (3439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3439 transitions. [2022-11-16 11:30:32,240 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3439 transitions. Word has length 614 [2022-11-16 11:30:32,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:32,242 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 3439 transitions. [2022-11-16 11:30:32,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) 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) [2022-11-16 11:30:32,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3439 transitions. [2022-11-16 11:30:32,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2022-11-16 11:30:32,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:32,281 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, 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, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:32,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:32,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-16 11:30:32,487 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:32,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:32,488 INFO L85 PathProgramCache]: Analyzing trace with hash -265669101, now seen corresponding path program 1 times [2022-11-16 11:30:32,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:32,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734722513] [2022-11-16 11:30:32,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:32,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 1089 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-16 11:30:33,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:33,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734722513] [2022-11-16 11:30:33,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734722513] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:33,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206834760] [2022-11-16 11:30:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:33,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:33,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:33,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:33,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 11:30:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:33,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:30:33,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:33,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2022-11-16 11:30:33,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:33,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206834760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:33,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:33,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-16 11:30:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205606215] [2022-11-16 11:30:33,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:33,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:33,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:33,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:33,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:33,933 INFO L87 Difference]: Start difference. First operand 3208 states and 3439 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) 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) [2022-11-16 11:30:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:34,571 INFO L93 Difference]: Finished difference Result 6770 states and 7307 transitions. [2022-11-16 11:30:34,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) 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 626 [2022-11-16 11:30:34,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:34,602 INFO L225 Difference]: With dead ends: 6770 [2022-11-16 11:30:34,603 INFO L226 Difference]: Without dead ends: 3742 [2022-11-16 11:30:34,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:34,606 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 146 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:34,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 226 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:30:34,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-11-16 11:30:34,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2022-11-16 11:30:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.06794682422452) internal successors, (3615), 3385 states have internal predecessors, (3615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:34,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3615 transitions. [2022-11-16 11:30:34,684 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3615 transitions. Word has length 626 [2022-11-16 11:30:34,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:34,685 INFO L495 AbstractCegarLoop]: Abstraction has 3386 states and 3615 transitions. [2022-11-16 11:30:34,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) 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) [2022-11-16 11:30:34,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3615 transitions. [2022-11-16 11:30:34,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2022-11-16 11:30:34,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:34,705 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, 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, 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, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:34,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:34,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 11:30:34,911 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1547257260, now seen corresponding path program 1 times [2022-11-16 11:30:34,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:34,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031037973] [2022-11-16 11:30:34,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:34,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:35,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1165 proven. 104 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-16 11:30:35,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:35,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031037973] [2022-11-16 11:30:35,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031037973] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:35,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532697064] [2022-11-16 11:30:35,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:35,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:35,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:35,943 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:35,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 11:30:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:36,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:30:36,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 1192 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2022-11-16 11:30:37,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:37,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532697064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:37,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:37,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-16 11:30:37,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329968813] [2022-11-16 11:30:37,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:37,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:37,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:37,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:37,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:37,064 INFO L87 Difference]: Start difference. First operand 3386 states and 3615 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) [2022-11-16 11:30:37,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:37,731 INFO L93 Difference]: Finished difference Result 6770 states and 7232 transitions. [2022-11-16 11:30:37,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:37,732 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 645 [2022-11-16 11:30:37,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:37,744 INFO L225 Difference]: With dead ends: 6770 [2022-11-16 11:30:37,744 INFO L226 Difference]: Without dead ends: 3386 [2022-11-16 11:30:37,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:37,749 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 71 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:37,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 233 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:30:37,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2022-11-16 11:30:37,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2022-11-16 11:30:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0596750369276218) internal successors, (3587), 3385 states have internal predecessors, (3587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:37,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3587 transitions. [2022-11-16 11:30:37,843 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3587 transitions. Word has length 645 [2022-11-16 11:30:37,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:37,844 INFO L495 AbstractCegarLoop]: Abstraction has 3386 states and 3587 transitions. [2022-11-16 11:30:37,844 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) [2022-11-16 11:30:37,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3587 transitions. [2022-11-16 11:30:37,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2022-11-16 11:30:37,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:37,853 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, 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, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:37,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:38,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:38,059 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:38,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:38,060 INFO L85 PathProgramCache]: Analyzing trace with hash -362013204, now seen corresponding path program 1 times [2022-11-16 11:30:38,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:38,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946868790] [2022-11-16 11:30:38,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:38,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 1314 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-16 11:30:38,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:38,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946868790] [2022-11-16 11:30:38,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946868790] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:38,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640381822] [2022-11-16 11:30:38,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:38,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:38,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:38,961 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:38,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 11:30:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:39,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 992 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:30:39,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1816 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-11-16 11:30:39,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:39,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640381822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:39,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:39,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-16 11:30:39,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732440412] [2022-11-16 11:30:39,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:39,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:39,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:39,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:39,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:30:39,424 INFO L87 Difference]: Start difference. First operand 3386 states and 3587 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:40,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:40,014 INFO L93 Difference]: Finished difference Result 7482 states and 7950 transitions. [2022-11-16 11:30:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:40,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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 790 [2022-11-16 11:30:40,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:40,029 INFO L225 Difference]: With dead ends: 7482 [2022-11-16 11:30:40,029 INFO L226 Difference]: Without dead ends: 4276 [2022-11-16 11:30:40,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 790 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:30:40,034 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:40,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 26 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:30:40,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-11-16 11:30:40,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2022-11-16 11:30:40,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0561386380278253) internal successors, (4327), 4097 states have internal predecessors, (4327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:40,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4327 transitions. [2022-11-16 11:30:40,114 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4327 transitions. Word has length 790 [2022-11-16 11:30:40,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:40,115 INFO L495 AbstractCegarLoop]: Abstraction has 4098 states and 4327 transitions. [2022-11-16 11:30:40,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:40,116 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4327 transitions. [2022-11-16 11:30:40,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2022-11-16 11:30:40,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:40,156 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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2022-11-16 11:30:40,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:40,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:40,363 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:40,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:40,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1645945781, now seen corresponding path program 1 times [2022-11-16 11:30:40,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:40,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309347980] [2022-11-16 11:30:40,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:40,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-16 11:30:41,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:41,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309347980] [2022-11-16 11:30:41,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309347980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:41,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916166363] [2022-11-16 11:30:41,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:41,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:41,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:41,146 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:41,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 11:30:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:41,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:30:41,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-16 11:30:41,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:30:42,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1393 proven. 155 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2022-11-16 11:30:42,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916166363] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:30:42,374 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:30:42,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-11-16 11:30:42,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87711972] [2022-11-16 11:30:42,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:30:42,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:30:42,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:30:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:42,378 INFO L87 Difference]: Start difference. First operand 4098 states and 4327 transitions. Second operand has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:43,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:43,712 INFO L93 Difference]: Finished difference Result 9442 states and 9973 transitions. [2022-11-16 11:30:43,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:30:43,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 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 819 [2022-11-16 11:30:43,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:43,733 INFO L225 Difference]: With dead ends: 9442 [2022-11-16 11:30:43,733 INFO L226 Difference]: Without dead ends: 5524 [2022-11-16 11:30:43,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1640 GetRequests, 1636 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:43,741 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 42 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:43,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 63 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 11:30:43,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2022-11-16 11:30:43,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 4810. [2022-11-16 11:30:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.0526096901642754) internal successors, (5062), 4809 states have internal predecessors, (5062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5062 transitions. [2022-11-16 11:30:43,840 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5062 transitions. Word has length 819 [2022-11-16 11:30:43,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:43,841 INFO L495 AbstractCegarLoop]: Abstraction has 4810 states and 5062 transitions. [2022-11-16 11:30:43,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:43,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5062 transitions. [2022-11-16 11:30:43,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2022-11-16 11:30:43,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:43,852 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, 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, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 1] [2022-11-16 11:30:43,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:44,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-16 11:30:44,059 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:44,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:44,060 INFO L85 PathProgramCache]: Analyzing trace with hash -175681709, now seen corresponding path program 1 times [2022-11-16 11:30:44,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:44,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438495736] [2022-11-16 11:30:44,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:44,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:45,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2484 backedges. 1680 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2022-11-16 11:30:45,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:45,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438495736] [2022-11-16 11:30:45,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438495736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:45,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:45,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:45,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118822722] [2022-11-16 11:30:45,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:45,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:45,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:45,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:45,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:45,443 INFO L87 Difference]: Start difference. First operand 4810 states and 5062 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:46,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:46,043 INFO L93 Difference]: Finished difference Result 9796 states and 10340 transitions. [2022-11-16 11:30:46,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:46,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 881 [2022-11-16 11:30:46,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:46,059 INFO L225 Difference]: With dead ends: 9796 [2022-11-16 11:30:46,059 INFO L226 Difference]: Without dead ends: 5166 [2022-11-16 11:30:46,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:30:46,064 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:46,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 216 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:30:46,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-11-16 11:30:46,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 5166. [2022-11-16 11:30:46,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.047434656340755) internal successors, (5410), 5165 states have internal predecessors, (5410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5410 transitions. [2022-11-16 11:30:46,159 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5410 transitions. Word has length 881 [2022-11-16 11:30:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:46,160 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5410 transitions. [2022-11-16 11:30:46,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5410 transitions. [2022-11-16 11:30:46,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2022-11-16 11:30:46,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:46,174 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, 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, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 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] [2022-11-16 11:30:46,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:30:46,174 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:46,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1535028442, now seen corresponding path program 1 times [2022-11-16 11:30:46,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:46,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599472713] [2022-11-16 11:30:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:46,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2487 backedges. 1671 proven. 93 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2022-11-16 11:30:47,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:47,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599472713] [2022-11-16 11:30:47,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599472713] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:47,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481143236] [2022-11-16 11:30:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:47,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:47,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:47,307 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:47,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 11:30:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:47,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:30:47,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2487 backedges. 802 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2022-11-16 11:30:48,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:48,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481143236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:48,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:48,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-16 11:30:48,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289175436] [2022-11-16 11:30:48,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:48,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:48,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:48,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:48,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:48,762 INFO L87 Difference]: Start difference. First operand 5166 states and 5410 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 2 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:49,326 INFO L93 Difference]: Finished difference Result 10330 states and 10828 transitions. [2022-11-16 11:30:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:49,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 2 states have internal predecessors, (283), 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 899 [2022-11-16 11:30:49,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:49,352 INFO L225 Difference]: With dead ends: 10330 [2022-11-16 11:30:49,353 INFO L226 Difference]: Without dead ends: 5344 [2022-11-16 11:30:49,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 898 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:49,358 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:49,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 38 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:30:49,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-11-16 11:30:49,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2022-11-16 11:30:49,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.047164514317799) internal successors, (5595), 5343 states have internal predecessors, (5595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5595 transitions. [2022-11-16 11:30:49,447 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5595 transitions. Word has length 899 [2022-11-16 11:30:49,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:49,449 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5595 transitions. [2022-11-16 11:30:49,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 2 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:49,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5595 transitions. [2022-11-16 11:30:49,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2022-11-16 11:30:49,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:49,461 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, 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, 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] [2022-11-16 11:30:49,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:49,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 11:30:49,668 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:49,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:49,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1827238079, now seen corresponding path program 1 times [2022-11-16 11:30:49,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:49,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464221065] [2022-11-16 11:30:49,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:49,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2972 backedges. 1907 proven. 93 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2022-11-16 11:30:50,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:50,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464221065] [2022-11-16 11:30:50,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464221065] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:50,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129811533] [2022-11-16 11:30:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:50,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:50,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:50,841 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:50,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 11:30:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:51,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:30:51,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2972 backedges. 2000 proven. 0 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2022-11-16 11:30:51,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:51,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129811533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:51,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:51,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-16 11:30:51,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419833414] [2022-11-16 11:30:51,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:51,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:30:51,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:51,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:30:51,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:51,973 INFO L87 Difference]: Start difference. First operand 5344 states and 5595 transitions. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:52,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:52,593 INFO L93 Difference]: Finished difference Result 10686 states and 11191 transitions. [2022-11-16 11:30:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:30:52,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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 923 [2022-11-16 11:30:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:52,605 INFO L225 Difference]: With dead ends: 10686 [2022-11-16 11:30:52,606 INFO L226 Difference]: Without dead ends: 5522 [2022-11-16 11:30:52,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 922 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:30:52,612 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:52,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 53 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:30:52,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-11-16 11:30:52,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5166. [2022-11-16 11:30:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0482090997095836) internal successors, (5414), 5165 states have internal predecessors, (5414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:52,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5414 transitions. [2022-11-16 11:30:52,717 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5414 transitions. Word has length 923 [2022-11-16 11:30:52,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:52,719 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5414 transitions. [2022-11-16 11:30:52,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:52,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5414 transitions. [2022-11-16 11:30:52,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1001 [2022-11-16 11:30:52,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:52,732 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, 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, 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, 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] [2022-11-16 11:30:52,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:30:52,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 11:30:52,939 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:52,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1758890904, now seen corresponding path program 1 times [2022-11-16 11:30:52,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:52,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631533005] [2022-11-16 11:30:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:52,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3615 backedges. 1649 proven. 0 refuted. 0 times theorem prover too weak. 1966 trivial. 0 not checked. [2022-11-16 11:30:54,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:54,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631533005] [2022-11-16 11:30:54,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631533005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:54,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:54,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:30:54,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433331972] [2022-11-16 11:30:54,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:54,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:30:54,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:54,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:30:54,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:54,129 INFO L87 Difference]: Start difference. First operand 5166 states and 5414 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) [2022-11-16 11:30:54,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:54,946 INFO L93 Difference]: Finished difference Result 10380 states and 10879 transitions. [2022-11-16 11:30:54,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:30:54,947 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 1000 [2022-11-16 11:30:54,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:54,956 INFO L225 Difference]: With dead ends: 10380 [2022-11-16 11:30:54,957 INFO L226 Difference]: Without dead ends: 5344 [2022-11-16 11:30:54,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:54,962 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 97 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:54,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 28 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:30:54,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-11-16 11:30:55,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2022-11-16 11:30:55,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0387221684414327) internal successors, (5365), 5165 states have internal predecessors, (5365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:55,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5365 transitions. [2022-11-16 11:30:55,050 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5365 transitions. Word has length 1000 [2022-11-16 11:30:55,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:55,051 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5365 transitions. [2022-11-16 11:30:55,051 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) [2022-11-16 11:30:55,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5365 transitions. [2022-11-16 11:30:55,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2022-11-16 11:30:55,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:55,064 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, 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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:30:55,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:30:55,064 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:55,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:55,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2145794894, now seen corresponding path program 1 times [2022-11-16 11:30:55,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:55,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461582049] [2022-11-16 11:30:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:55,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3025 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2022-11-16 11:30:56,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:56,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461582049] [2022-11-16 11:30:56,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461582049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:56,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:30:56,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:30:56,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938890133] [2022-11-16 11:30:56,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:56,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:56,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:56,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:56,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:30:56,113 INFO L87 Difference]: Start difference. First operand 5166 states and 5365 transitions. Second operand has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:30:56,732 INFO L93 Difference]: Finished difference Result 10172 states and 10565 transitions. [2022-11-16 11:30:56,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:30:56,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 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 1027 [2022-11-16 11:30:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:30:56,742 INFO L225 Difference]: With dead ends: 10172 [2022-11-16 11:30:56,743 INFO L226 Difference]: Without dead ends: 5166 [2022-11-16 11:30:56,747 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 [2022-11-16 11:30:56,748 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 33 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:30:56,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 17 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:30:56,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-11-16 11:30:56,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2022-11-16 11:30:56,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0372969721275316) internal successors, (5173), 4987 states have internal predecessors, (5173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5173 transitions. [2022-11-16 11:30:56,838 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5173 transitions. Word has length 1027 [2022-11-16 11:30:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:30:56,839 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5173 transitions. [2022-11-16 11:30:56,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.5) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:30:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5173 transitions. [2022-11-16 11:30:56,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2022-11-16 11:30:56,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:30:56,853 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, 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, 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, 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, 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] [2022-11-16 11:30:56,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:30:56,853 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:30:56,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:30:56,854 INFO L85 PathProgramCache]: Analyzing trace with hash 538441961, now seen corresponding path program 1 times [2022-11-16 11:30:56,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:30:56,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945717303] [2022-11-16 11:30:56,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:56,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:30:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2444 proven. 72 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2022-11-16 11:30:58,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:30:58,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945717303] [2022-11-16 11:30:58,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945717303] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:30:58,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746536128] [2022-11-16 11:30:58,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:30:58,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:30:58,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:30:58,645 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:30:58,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-16 11:30:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:30:59,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 11:30:59,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:30:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2157 proven. 0 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2022-11-16 11:30:59,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:30:59,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746536128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:30:59,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:30:59,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-16 11:30:59,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511286801] [2022-11-16 11:30:59,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:30:59,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:30:59,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:30:59,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:30:59,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:30:59,551 INFO L87 Difference]: Start difference. First operand 4988 states and 5173 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:00,540 INFO L93 Difference]: Finished difference Result 10152 states and 10537 transitions. [2022-11-16 11:31:00,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:31:00,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 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 1032 [2022-11-16 11:31:00,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:00,552 INFO L225 Difference]: With dead ends: 10152 [2022-11-16 11:31:00,553 INFO L226 Difference]: Without dead ends: 5344 [2022-11-16 11:31:00,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1036 GetRequests, 1031 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:00,559 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 115 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:00,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 44 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 11:31:00,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-11-16 11:31:00,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2022-11-16 11:31:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0363988383349467) internal successors, (5353), 5165 states have internal predecessors, (5353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5353 transitions. [2022-11-16 11:31:00,668 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5353 transitions. Word has length 1032 [2022-11-16 11:31:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:00,670 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5353 transitions. [2022-11-16 11:31:00,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:00,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5353 transitions. [2022-11-16 11:31:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2022-11-16 11:31:00,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:00,693 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:00,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:00,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-16 11:31:00,899 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:00,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:00,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1566111157, now seen corresponding path program 1 times [2022-11-16 11:31:00,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:00,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468453078] [2022-11-16 11:31:00,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:00,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3154 backedges. 1891 proven. 7 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2022-11-16 11:31:02,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:02,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468453078] [2022-11-16 11:31:02,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468453078] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:31:02,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634837117] [2022-11-16 11:31:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:02,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:02,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:02,103 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:31:02,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-16 11:31:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:02,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:31:02,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3154 backedges. 1898 proven. 0 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2022-11-16 11:31:02,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:31:02,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634837117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:02,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:31:02,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-16 11:31:02,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822889654] [2022-11-16 11:31:02,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:02,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:02,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:02,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:02,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:02,709 INFO L87 Difference]: Start difference. First operand 5166 states and 5353 transitions. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:03,308 INFO L93 Difference]: Finished difference Result 10508 states and 10886 transitions. [2022-11-16 11:31:03,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:03,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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 1034 [2022-11-16 11:31:03,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:03,320 INFO L225 Difference]: With dead ends: 10508 [2022-11-16 11:31:03,320 INFO L226 Difference]: Without dead ends: 5522 [2022-11-16 11:31:03,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 1033 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:03,325 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:03,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 223 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:31:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-11-16 11:31:03,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4988. [2022-11-16 11:31:03,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0340886304391417) internal successors, (5157), 4987 states have internal predecessors, (5157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5157 transitions. [2022-11-16 11:31:03,412 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5157 transitions. Word has length 1034 [2022-11-16 11:31:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:03,413 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5157 transitions. [2022-11-16 11:31:03,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:03,414 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5157 transitions. [2022-11-16 11:31:03,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1392 [2022-11-16 11:31:03,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:03,435 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, 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, 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, 9, 9, 9, 9, 9, 9, 8, 7, 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] [2022-11-16 11:31:03,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:03,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:03,648 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:03,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:03,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1049269503, now seen corresponding path program 1 times [2022-11-16 11:31:03,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:03,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564205169] [2022-11-16 11:31:03,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:03,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:04,940 INFO L134 CoverageAnalysis]: Checked inductivity of 5939 backedges. 362 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-11-16 11:31:04,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:04,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564205169] [2022-11-16 11:31:04,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564205169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:04,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:04,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:31:04,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968408157] [2022-11-16 11:31:04,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:04,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:04,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:04,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:04,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:04,944 INFO L87 Difference]: Start difference. First operand 4988 states and 5157 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:05,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:05,553 INFO L93 Difference]: Finished difference Result 9974 states and 10315 transitions. [2022-11-16 11:31:05,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:05,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 1391 [2022-11-16 11:31:05,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:05,563 INFO L225 Difference]: With dead ends: 9974 [2022-11-16 11:31:05,563 INFO L226 Difference]: Without dead ends: 5166 [2022-11-16 11:31:05,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:31:05,569 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 148 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:05,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 207 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:31:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2022-11-16 11:31:05,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2022-11-16 11:31:05,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0306797673952275) internal successors, (5140), 4987 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:05,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5140 transitions. [2022-11-16 11:31:05,662 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5140 transitions. Word has length 1391 [2022-11-16 11:31:05,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:05,663 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5140 transitions. [2022-11-16 11:31:05,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:05,664 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5140 transitions. [2022-11-16 11:31:05,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1647 [2022-11-16 11:31:05,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:05,692 INFO L195 NwaCegarLoop]: trace histogram [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, 14, 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, 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, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-16 11:31:05,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 11:31:05,693 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:05,694 INFO L85 PathProgramCache]: Analyzing trace with hash -172671030, now seen corresponding path program 1 times [2022-11-16 11:31:05,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:05,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47523735] [2022-11-16 11:31:05,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:05,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 8542 backedges. 4927 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2022-11-16 11:31:09,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:09,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47523735] [2022-11-16 11:31:09,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47523735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:09,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:09,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:31:09,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538206235] [2022-11-16 11:31:09,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:09,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:31:09,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:09,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:31:09,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:09,066 INFO L87 Difference]: Start difference. First operand 4988 states and 5140 transitions. Second operand has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:10,754 INFO L93 Difference]: Finished difference Result 12661 states and 13079 transitions. [2022-11-16 11:31:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:31:10,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 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 1646 [2022-11-16 11:31:10,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:10,765 INFO L225 Difference]: With dead ends: 12661 [2022-11-16 11:31:10,765 INFO L226 Difference]: Without dead ends: 7304 [2022-11-16 11:31:10,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:10,770 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 147 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:10,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 41 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 11:31:10,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7304 states. [2022-11-16 11:31:10,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7304 to 6056. [2022-11-16 11:31:10,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0244426094137076) internal successors, (6203), 6055 states have internal predecessors, (6203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:10,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6203 transitions. [2022-11-16 11:31:10,864 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6203 transitions. Word has length 1646 [2022-11-16 11:31:10,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:10,866 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6203 transitions. [2022-11-16 11:31:10,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.0) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:10,866 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6203 transitions. [2022-11-16 11:31:10,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1703 [2022-11-16 11:31:10,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:10,891 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, 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, 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, 10, 10, 10, 10, 9, 8, 8, 7, 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, 1, 1, 1] [2022-11-16 11:31:10,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 11:31:10,892 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:10,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:10,892 INFO L85 PathProgramCache]: Analyzing trace with hash -304043835, now seen corresponding path program 1 times [2022-11-16 11:31:10,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:10,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562732080] [2022-11-16 11:31:10,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:10,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 9571 backedges. 2811 proven. 0 refuted. 0 times theorem prover too weak. 6760 trivial. 0 not checked. [2022-11-16 11:31:12,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:12,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562732080] [2022-11-16 11:31:12,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562732080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:12,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:12,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:31:12,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430057775] [2022-11-16 11:31:12,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:12,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:31:12,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:12,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:31:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:31:12,769 INFO L87 Difference]: Start difference. First operand 6056 states and 6203 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:13,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:13,414 INFO L93 Difference]: Finished difference Result 11954 states and 12247 transitions. [2022-11-16 11:31:13,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:31:13,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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 1702 [2022-11-16 11:31:13,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:13,424 INFO L225 Difference]: With dead ends: 11954 [2022-11-16 11:31:13,424 INFO L226 Difference]: Without dead ends: 6056 [2022-11-16 11:31:13,428 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 [2022-11-16 11:31:13,428 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:13,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 17 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:31:13,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-11-16 11:31:13,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-11-16 11:31:13,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0234516928158546) internal successors, (6197), 6055 states have internal predecessors, (6197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:13,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6197 transitions. [2022-11-16 11:31:13,519 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6197 transitions. Word has length 1702 [2022-11-16 11:31:13,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:13,521 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6197 transitions. [2022-11-16 11:31:13,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:13,521 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6197 transitions. [2022-11-16 11:31:13,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1743 [2022-11-16 11:31:13,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:13,549 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, 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, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 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, 10, 10, 10, 10, 9, 8, 7, 7, 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:13,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 11:31:13,550 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:13,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:13,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1952577186, now seen corresponding path program 1 times [2022-11-16 11:31:13,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:13,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777085164] [2022-11-16 11:31:13,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:13,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 2756 proven. 1045 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2022-11-16 11:31:15,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:15,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777085164] [2022-11-16 11:31:15,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777085164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:31:15,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569682922] [2022-11-16 11:31:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:15,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:15,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:15,061 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:31:15,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-16 11:31:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:15,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:31:15,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:15,969 INFO L134 CoverageAnalysis]: Checked inductivity of 9519 backedges. 3801 proven. 0 refuted. 0 times theorem prover too weak. 5718 trivial. 0 not checked. [2022-11-16 11:31:15,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:31:15,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569682922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:15,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:31:15,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-16 11:31:15,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794195028] [2022-11-16 11:31:15,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:15,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:15,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:15,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:15,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:15,975 INFO L87 Difference]: Start difference. First operand 6056 states and 6197 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:16,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:16,461 INFO L93 Difference]: Finished difference Result 12288 states and 12571 transitions. [2022-11-16 11:31:16,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:16,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 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 1742 [2022-11-16 11:31:16,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:16,470 INFO L225 Difference]: With dead ends: 12288 [2022-11-16 11:31:16,470 INFO L226 Difference]: Without dead ends: 5522 [2022-11-16 11:31:16,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1745 GetRequests, 1741 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:16,474 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:16,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 216 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:31:16,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-11-16 11:31:16,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4988. [2022-11-16 11:31:16,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0204531782634851) internal successors, (5089), 4987 states have internal predecessors, (5089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:16,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5089 transitions. [2022-11-16 11:31:16,548 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5089 transitions. Word has length 1742 [2022-11-16 11:31:16,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:16,549 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5089 transitions. [2022-11-16 11:31:16,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:16,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5089 transitions. [2022-11-16 11:31:16,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1814 [2022-11-16 11:31:16,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:16,577 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, 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, 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, 11, 11, 11, 11, 10, 9, 9, 9, 8, 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] [2022-11-16 11:31:16,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:16,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:16,784 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:16,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash -354861792, now seen corresponding path program 1 times [2022-11-16 11:31:16,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:16,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513048099] [2022-11-16 11:31:16,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:16,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 10875 backedges. 2724 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2022-11-16 11:31:19,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:19,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513048099] [2022-11-16 11:31:19,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513048099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:19,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:19,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:31:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810979209] [2022-11-16 11:31:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:19,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:31:19,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:19,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:31:19,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:31:19,678 INFO L87 Difference]: Start difference. First operand 4988 states and 5089 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:20,538 INFO L93 Difference]: Finished difference Result 11932 states and 12200 transitions. [2022-11-16 11:31:20,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:31:20,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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 1813 [2022-11-16 11:31:20,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:20,545 INFO L225 Difference]: With dead ends: 11932 [2022-11-16 11:31:20,545 INFO L226 Difference]: Without dead ends: 7124 [2022-11-16 11:31:20,548 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 [2022-11-16 11:31:20,549 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 236 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:20,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 18 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:31:20,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2022-11-16 11:31:20,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6056. [2022-11-16 11:31:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0227910817506194) internal successors, (6193), 6055 states have internal predecessors, (6193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:20,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6193 transitions. [2022-11-16 11:31:20,659 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6193 transitions. Word has length 1813 [2022-11-16 11:31:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:20,661 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6193 transitions. [2022-11-16 11:31:20,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6193 transitions. [2022-11-16 11:31:20,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1984 [2022-11-16 11:31:20,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:20,703 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 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, 14, 14, 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, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:20,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 11:31:20,703 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:20,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:20,704 INFO L85 PathProgramCache]: Analyzing trace with hash -375981036, now seen corresponding path program 1 times [2022-11-16 11:31:20,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:20,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621300441] [2022-11-16 11:31:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:20,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 12681 backedges. 3503 proven. 812 refuted. 0 times theorem prover too weak. 8366 trivial. 0 not checked. [2022-11-16 11:31:23,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:23,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621300441] [2022-11-16 11:31:23,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621300441] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:31:23,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738652995] [2022-11-16 11:31:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:23,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:23,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:23,205 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:31:23,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-16 11:31:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:23,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 2411 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 11:31:23,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:27,446 INFO L134 CoverageAnalysis]: Checked inductivity of 12681 backedges. 4237 proven. 0 refuted. 0 times theorem prover too weak. 8444 trivial. 0 not checked. [2022-11-16 11:31:27,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:31:27,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738652995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:27,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:31:27,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2022-11-16 11:31:27,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025746395] [2022-11-16 11:31:27,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:27,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:31:27,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:27,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:31:27,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:31:27,450 INFO L87 Difference]: Start difference. First operand 6056 states and 6193 transitions. Second operand has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:28,053 INFO L93 Difference]: Finished difference Result 11803 states and 12075 transitions. [2022-11-16 11:31:28,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:31:28,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 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 1983 [2022-11-16 11:31:28,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:28,059 INFO L225 Difference]: With dead ends: 11803 [2022-11-16 11:31:28,059 INFO L226 Difference]: Without dead ends: 6056 [2022-11-16 11:31:28,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1987 GetRequests, 1980 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:31:28,062 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 120 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:28,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 20 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 11:31:28,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-11-16 11:31:28,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-11-16 11:31:28,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0214698596201486) internal successors, (6185), 6055 states have internal predecessors, (6185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6185 transitions. [2022-11-16 11:31:28,157 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6185 transitions. Word has length 1983 [2022-11-16 11:31:28,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:28,158 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6185 transitions. [2022-11-16 11:31:28,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:28,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6185 transitions. [2022-11-16 11:31:28,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2027 [2022-11-16 11:31:28,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:28,190 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 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, 1, 1] [2022-11-16 11:31:28,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:28,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-16 11:31:28,391 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:28,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:28,392 INFO L85 PathProgramCache]: Analyzing trace with hash -680935796, now seen corresponding path program 1 times [2022-11-16 11:31:28,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:28,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611118043] [2022-11-16 11:31:28,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:28,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 13914 backedges. 4419 proven. 0 refuted. 0 times theorem prover too weak. 9495 trivial. 0 not checked. [2022-11-16 11:31:30,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:30,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611118043] [2022-11-16 11:31:30,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611118043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:30,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:30,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:31:30,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038426264] [2022-11-16 11:31:30,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:30,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:31:30,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:30,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:31:30,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:31:30,178 INFO L87 Difference]: Start difference. First operand 6056 states and 6185 transitions. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:30,698 INFO L93 Difference]: Finished difference Result 11766 states and 12022 transitions. [2022-11-16 11:31:30,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:31:30,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 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 2026 [2022-11-16 11:31:30,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:30,704 INFO L225 Difference]: With dead ends: 11766 [2022-11-16 11:31:30,704 INFO L226 Difference]: Without dead ends: 6056 [2022-11-16 11:31:30,707 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 [2022-11-16 11:31:30,707 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:30,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:31:30,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-11-16 11:31:30,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-11-16 11:31:30,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.020148637489678) internal successors, (6177), 6055 states have internal predecessors, (6177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6177 transitions. [2022-11-16 11:31:30,798 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6177 transitions. Word has length 2026 [2022-11-16 11:31:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:30,800 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6177 transitions. [2022-11-16 11:31:30,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:30,800 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6177 transitions. [2022-11-16 11:31:30,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2028 [2022-11-16 11:31:30,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:30,835 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 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, 1, 1] [2022-11-16 11:31:30,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 11:31:30,835 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:30,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash -180051635, now seen corresponding path program 1 times [2022-11-16 11:31:30,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:30,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059420753] [2022-11-16 11:31:30,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:30,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 13927 backedges. 4524 proven. 0 refuted. 0 times theorem prover too weak. 9403 trivial. 0 not checked. [2022-11-16 11:31:33,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:33,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059420753] [2022-11-16 11:31:33,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059420753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:33,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:33,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:31:33,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635303711] [2022-11-16 11:31:33,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:33,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:31:33,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:33,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:31:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:33,368 INFO L87 Difference]: Start difference. First operand 6056 states and 6177 transitions. Second operand has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:34,095 INFO L93 Difference]: Finished difference Result 11807 states and 12047 transitions. [2022-11-16 11:31:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:31:34,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 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 2027 [2022-11-16 11:31:34,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:34,102 INFO L225 Difference]: With dead ends: 11807 [2022-11-16 11:31:34,102 INFO L226 Difference]: Without dead ends: 6056 [2022-11-16 11:31:34,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:34,107 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 117 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:34,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 28 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 11:31:34,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-11-16 11:31:34,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-11-16 11:31:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0188274153592072) internal successors, (6169), 6055 states have internal predecessors, (6169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:34,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6169 transitions. [2022-11-16 11:31:34,209 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6169 transitions. Word has length 2027 [2022-11-16 11:31:34,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:34,211 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6169 transitions. [2022-11-16 11:31:34,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:34,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6169 transitions. [2022-11-16 11:31:34,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2116 [2022-11-16 11:31:34,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:34,253 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 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, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 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, 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] [2022-11-16 11:31:34,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 11:31:34,253 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:34,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:34,254 INFO L85 PathProgramCache]: Analyzing trace with hash 58677289, now seen corresponding path program 1 times [2022-11-16 11:31:34,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:34,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54691634] [2022-11-16 11:31:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:34,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 14461 backedges. 3142 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2022-11-16 11:31:37,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:37,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54691634] [2022-11-16 11:31:37,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54691634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:37,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:37,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:31:37,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444232904] [2022-11-16 11:31:37,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:37,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:31:37,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:37,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:31:37,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:31:37,645 INFO L87 Difference]: Start difference. First operand 6056 states and 6169 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) [2022-11-16 11:31:38,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:38,159 INFO L93 Difference]: Finished difference Result 11932 states and 12145 transitions. [2022-11-16 11:31:38,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:31:38,161 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 2115 [2022-11-16 11:31:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:38,169 INFO L225 Difference]: With dead ends: 11932 [2022-11-16 11:31:38,169 INFO L226 Difference]: Without dead ends: 6056 [2022-11-16 11:31:38,174 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 [2022-11-16 11:31:38,174 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 239 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:38,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 10 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:31:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-11-16 11:31:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5700. [2022-11-16 11:31:38,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0164941217757502) internal successors, (5793), 5699 states have internal predecessors, (5793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5793 transitions. [2022-11-16 11:31:38,273 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5793 transitions. Word has length 2115 [2022-11-16 11:31:38,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:38,275 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 5793 transitions. [2022-11-16 11:31:38,275 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) [2022-11-16 11:31:38,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5793 transitions. [2022-11-16 11:31:38,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2219 [2022-11-16 11:31:38,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:38,320 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 16, 16, 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, 13, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:38,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 11:31:38,321 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:38,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:38,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1575662998, now seen corresponding path program 1 times [2022-11-16 11:31:38,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:38,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776927800] [2022-11-16 11:31:38,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:38,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 16099 backedges. 6408 proven. 0 refuted. 0 times theorem prover too weak. 9691 trivial. 0 not checked. [2022-11-16 11:31:40,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:40,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776927800] [2022-11-16 11:31:40,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776927800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:40,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:40,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:31:40,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835938162] [2022-11-16 11:31:40,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:40,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:31:40,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:40,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:31:40,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:40,893 INFO L87 Difference]: Start difference. First operand 5700 states and 5793 transitions. Second operand has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:41,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:41,480 INFO L93 Difference]: Finished difference Result 10780 states and 10958 transitions. [2022-11-16 11:31:41,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:31:41,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 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 2218 [2022-11-16 11:31:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:41,485 INFO L225 Difference]: With dead ends: 10780 [2022-11-16 11:31:41,485 INFO L226 Difference]: Without dead ends: 5344 [2022-11-16 11:31:41,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:41,488 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 79 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:41,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 23 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 11:31:41,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-11-16 11:31:41,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2022-11-16 11:31:41,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0153471832303949) internal successors, (5425), 5343 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5425 transitions. [2022-11-16 11:31:41,553 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5425 transitions. Word has length 2218 [2022-11-16 11:31:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:41,554 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5425 transitions. [2022-11-16 11:31:41,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 6 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5425 transitions. [2022-11-16 11:31:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2313 [2022-11-16 11:31:41,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:41,597 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 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, 14, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 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] [2022-11-16 11:31:41,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 11:31:41,598 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:41,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:41,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1798942431, now seen corresponding path program 1 times [2022-11-16 11:31:41,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:41,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91338256] [2022-11-16 11:31:41,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:41,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 16826 backedges. 3650 proven. 59 refuted. 0 times theorem prover too weak. 13117 trivial. 0 not checked. [2022-11-16 11:31:44,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:44,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91338256] [2022-11-16 11:31:44,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91338256] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:31:44,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559077062] [2022-11-16 11:31:44,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:44,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:44,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:31:44,817 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:31:44,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-16 11:31:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:45,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 2779 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 11:31:45,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:31:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 16826 backedges. 2513 proven. 0 refuted. 0 times theorem prover too weak. 14313 trivial. 0 not checked. [2022-11-16 11:31:46,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:31:46,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559077062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:46,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 11:31:46,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-16 11:31:46,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456799449] [2022-11-16 11:31:46,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:46,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:31:46,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:46,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:31:46,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:46,076 INFO L87 Difference]: Start difference. First operand 5344 states and 5425 transitions. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:46,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:46,529 INFO L93 Difference]: Finished difference Result 10330 states and 10490 transitions. [2022-11-16 11:31:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:31:46,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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 2312 [2022-11-16 11:31:46,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:46,535 INFO L225 Difference]: With dead ends: 10330 [2022-11-16 11:31:46,535 INFO L226 Difference]: Without dead ends: 5344 [2022-11-16 11:31:46,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2316 GetRequests, 2312 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:31:46,538 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 51 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:46,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 206 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 11:31:46,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-11-16 11:31:46,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2022-11-16 11:31:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0133591481122943) internal successors, (5234), 5165 states have internal predecessors, (5234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5234 transitions. [2022-11-16 11:31:46,592 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5234 transitions. Word has length 2312 [2022-11-16 11:31:46,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:46,594 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5234 transitions. [2022-11-16 11:31:46,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5234 transitions. [2022-11-16 11:31:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2730 [2022-11-16 11:31:46,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:31:46,673 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 16, 16, 16, 14, 14, 14, 14, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 8, 8, 8, 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, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:31:46,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:31:46,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:31:46,874 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:31:46,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:31:46,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1902740227, now seen corresponding path program 1 times [2022-11-16 11:31:46,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:31:46,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675682947] [2022-11-16 11:31:46,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:31:46,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:31:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:31:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 23424 backedges. 11345 proven. 0 refuted. 0 times theorem prover too weak. 12079 trivial. 0 not checked. [2022-11-16 11:31:49,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:31:49,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675682947] [2022-11-16 11:31:49,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675682947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:31:49,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:31:49,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:31:49,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127826988] [2022-11-16 11:31:49,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:31:49,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:31:49,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:31:49,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:31:49,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:31:49,526 INFO L87 Difference]: Start difference. First operand 5166 states and 5234 transitions. Second operand has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:50,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:31:50,420 INFO L93 Difference]: Finished difference Result 9124 states and 9244 transitions. [2022-11-16 11:31:50,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:31:50,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 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 2729 [2022-11-16 11:31:50,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:31:50,422 INFO L225 Difference]: With dead ends: 9124 [2022-11-16 11:31:50,422 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:31:50,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:31:50,425 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 163 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:31:50,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 279 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 11:31:50,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:31:50,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:31:50,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:31:50,426 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2729 [2022-11-16 11:31:50,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:31:50,427 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:31:50,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:31:50,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:31:50,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:31:50,430 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:31:50,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 11:31:50,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 11:33:56,486 WARN L233 SmtUtils]: Spent 2.10m on a formula simplification. DAG size of input: 259 DAG size of output: 256 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:36:16,899 WARN L233 SmtUtils]: Spent 2.34m on a formula simplification. DAG size of input: 259 DAG size of output: 256 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:36:23,325 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-11-16 11:36:23,325 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-11-16 11:36:23,325 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-11-16 11:36:23,326 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-11-16 11:36:23,327 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-11-16 11:36:23,328 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-11-16 11:36:23,329 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-11-16 11:36:23,330 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-11-16 11:36:23,331 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-11-16 11:36:23,332 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-11-16 11:36:23,333 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-11-16 11:36:23,334 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-11-16 11:36:23,335 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 119) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,336 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-11-16 11:36:23,339 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-11-16 11:36:23,339 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-11-16 11:36:23,340 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-11-16 11:36:23,340 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-11-16 11:36:23,340 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-11-16 11:36:23,340 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-11-16 11:36:23,340 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-11-16 11:36:23,340 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,341 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,341 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,341 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-11-16 11:36:23,341 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-11-16 11:36:23,341 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-11-16 11:36:23,341 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-11-16 11:36:23,342 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-11-16 11:36:23,342 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-11-16 11:36:23,342 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-11-16 11:36:23,342 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-11-16 11:36:23,342 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,342 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,342 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,343 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-11-16 11:36:23,343 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-11-16 11:36:23,343 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-11-16 11:36:23,343 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-11-16 11:36:23,343 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-16 11:36:23,343 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-11-16 11:36:23,344 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-11-16 11:36:23,344 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-11-16 11:36:23,344 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,344 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,344 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,344 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-11-16 11:36:23,345 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-11-16 11:36:23,345 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-11-16 11:36:23,345 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-11-16 11:36:23,345 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-11-16 11:36:23,345 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-11-16 11:36:23,346 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-11-16 11:36:23,346 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-11-16 11:36:23,346 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,346 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,346 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,346 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-11-16 11:36:23,347 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-11-16 11:36:23,347 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-11-16 11:36:23,347 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-11-16 11:36:23,347 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-11-16 11:36:23,347 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-11-16 11:36:23,347 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-11-16 11:36:23,348 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-11-16 11:36:23,348 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,348 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,348 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-11-16 11:36:23,348 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-11-16 11:36:23,348 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-11-16 11:36:23,349 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-11-16 11:36:23,349 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-11-16 11:36:23,349 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-11-16 11:36:23,349 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-11-16 11:36:23,349 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-11-16 11:36:23,349 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,349 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,350 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-11-16 11:36:23,350 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 11:36:23,350 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-11-16 11:36:23,350 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-11-16 11:36:23,350 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-11-16 11:36:23,350 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-11-16 11:36:23,351 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-11-16 11:36:23,351 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,351 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,352 INFO L895 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse14 (<= ~a15~0 6)) (.cse34 (<= (+ 49 ~a12~0) 0)) (.cse37 (+ ~a12~0 43))) (let ((.cse10 (<= .cse37 0)) (.cse17 (<= 95382 ~a12~0)) (.cse4 (or (and .cse0 .cse14) (and .cse14 .cse34))) (.cse5 (<= ~a12~0 73282)) (.cse1 (<= ~a15~0 8)) (.cse8 (<= ~a15~0 7)) (.cse12 (<= 10 ~a21~0)) (.cse31 (= ~a21~0 6))) (let ((.cse30 (= 5 ~a15~0)) (.cse15 (< 0 .cse37)) (.cse22 (<= (+ ~a12~0 42) 0)) (.cse6 (<= (+ ~a12~0 9352) 0)) (.cse7 (<= 7 ~a21~0)) (.cse9 (<= ~a21~0 7)) (.cse27 (<= ~a12~0 586307)) (.cse2 (<= 20 ~a12~0)) (.cse28 (not (= |ULTIMATE.start_calculate_output_~input#1| 5))) (.cse33 (<= 0 (+ 41 ~a12~0))) (.cse35 (not .cse31)) (.cse18 (or (and .cse0 .cse1 .cse12 .cse17) (and .cse4 .cse5 .cse0) (and .cse0 .cse1 .cse8 .cse12))) (.cse23 (= ~a21~0 10)) (.cse19 (= ~a21~0 9)) (.cse29 (< 80 ~a12~0)) (.cse24 (= 7 ~a15~0)) (.cse3 (<= ~a21~0 6)) (.cse11 (= ~a15~0 9)) (.cse25 (<= 8 ~a21~0)) (.cse26 (<= ~a21~0 8)) (.cse36 (<= ~a12~0 599999)) (.cse20 (<= ~a12~0 11)) (.cse16 (<= 9 ~a21~0)) (.cse13 (<= ~a21~0 9)) (.cse32 (not .cse10)) (.cse21 (= ~a15~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse0 .cse7 .cse8 .cse9) (and .cse10 .cse0 .cse11 .cse12) (and .cse13 .cse0 .cse14 .cse15) (and .cse16 .cse13 .cse0 .cse8 .cse17) (and .cse18 .cse19 (= ~a15~0 6)) (and .cse20 .cse0 .cse12 .cse21) (and .cse18 .cse22 .cse23 .cse24) (and .cse5 .cse0 .cse2 .cse25 .cse26 .cse21) (and .cse0 .cse11 .cse2 .cse25 .cse26 .cse27) (and .cse28 .cse0 .cse19 .cse11 .cse29 .cse27) (and .cse0 .cse30 .cse31) (and .cse20 .cse13 .cse0 .cse1 .cse26 .cse32 .cse33) (and .cse0 .cse11 .cse3 .cse27 .cse17) (and .cse16 .cse0 .cse2 (<= ~a12~0 76) .cse21) (and .cse18 .cse30 .cse23) (and .cse20 .cse4 .cse15) (and .cse20 .cse0 .cse11 .cse12 .cse33) (and .cse0 .cse8 .cse22 .cse25 .cse26) (and .cse0 .cse7 .cse1 .cse9 .cse34 .cse35) (and .cse0 .cse11 .cse6 .cse25 .cse26) (and .cse0 .cse7 .cse11 .cse9 .cse36 .cse17) (and .cse0 .cse11 .cse29 .cse12 .cse36) (and .cse0 .cse7 .cse11 .cse2 .cse9 .cse27) (and (<= 103531 ~a12~0) (= ~a21~0 8) .cse0 .cse24) (and .cse0 .cse1 .cse2 .cse12 .cse21) (and .cse28 .cse0 .cse19 .cse11 .cse36 .cse17) (and .cse20 .cse0 .cse11 .cse25 .cse26 .cse33) (and .cse0 .cse1 .cse14 .cse34 .cse35) (and .cse18 (not (<= ~a12~0 80)) .cse23 .cse24) (and (not .cse20) .cse0 .cse19 (not .cse29) .cse24) (and .cse0 .cse3 .cse8 .cse34) (and .cse0 .cse11 .cse25 .cse26 .cse36 .cse17) (and .cse20 .cse16 .cse13 .cse0 .cse1 .cse32 .cse21))))) [2022-11-16 11:36:23,352 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-11-16 11:36:23,352 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-11-16 11:36:23,352 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-11-16 11:36:23,352 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-11-16 11:36:23,353 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-11-16 11:36:23,353 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-11-16 11:36:23,353 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-11-16 11:36:23,353 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-11-16 11:36:23,353 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,354 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,354 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-11-16 11:36:23,354 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-11-16 11:36:23,354 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-11-16 11:36:23,354 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-11-16 11:36:23,354 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-11-16 11:36:23,355 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-11-16 11:36:23,355 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-11-16 11:36:23,355 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-11-16 11:36:23,355 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,355 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,355 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 11:36:23,356 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-11-16 11:36:23,356 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-11-16 11:36:23,356 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-11-16 11:36:23,356 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-11-16 11:36:23,356 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-11-16 11:36:23,356 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-11-16 11:36:23,357 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,357 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,357 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-11-16 11:36:23,357 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,357 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-11-16 11:36:23,358 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1)) (.cse14 (<= ~a15~0 6)) (.cse34 (<= (+ 49 ~a12~0) 0)) (.cse37 (+ ~a12~0 43))) (let ((.cse10 (<= .cse37 0)) (.cse17 (<= 95382 ~a12~0)) (.cse4 (or (and .cse0 .cse14) (and .cse14 .cse34))) (.cse5 (<= ~a12~0 73282)) (.cse1 (<= ~a15~0 8)) (.cse8 (<= ~a15~0 7)) (.cse12 (<= 10 ~a21~0)) (.cse31 (= ~a21~0 6))) (let ((.cse30 (= 5 ~a15~0)) (.cse15 (< 0 .cse37)) (.cse22 (<= (+ ~a12~0 42) 0)) (.cse6 (<= (+ ~a12~0 9352) 0)) (.cse7 (<= 7 ~a21~0)) (.cse9 (<= ~a21~0 7)) (.cse27 (<= ~a12~0 586307)) (.cse2 (<= 20 ~a12~0)) (.cse28 (not (= |ULTIMATE.start_calculate_output_~input#1| 5))) (.cse33 (<= 0 (+ 41 ~a12~0))) (.cse35 (not .cse31)) (.cse18 (or (and .cse0 .cse1 .cse12 .cse17) (and .cse4 .cse5 .cse0) (and .cse0 .cse1 .cse8 .cse12))) (.cse23 (= ~a21~0 10)) (.cse19 (= ~a21~0 9)) (.cse29 (< 80 ~a12~0)) (.cse24 (= 7 ~a15~0)) (.cse3 (<= ~a21~0 6)) (.cse11 (= ~a15~0 9)) (.cse25 (<= 8 ~a21~0)) (.cse26 (<= ~a21~0 8)) (.cse36 (<= ~a12~0 599999)) (.cse20 (<= ~a12~0 11)) (.cse16 (<= 9 ~a21~0)) (.cse13 (<= ~a21~0 9)) (.cse32 (not .cse10)) (.cse21 (= ~a15~0 8))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6) (and .cse0 .cse7 .cse8 .cse9) (and .cse10 .cse0 .cse11 .cse12) (and .cse13 .cse0 .cse14 .cse15) (and .cse16 .cse13 .cse0 .cse8 .cse17) (and .cse18 .cse19 (= ~a15~0 6)) (and .cse20 .cse0 .cse12 .cse21) (and .cse18 .cse22 .cse23 .cse24) (and .cse5 .cse0 .cse2 .cse25 .cse26 .cse21) (and .cse0 .cse11 .cse2 .cse25 .cse26 .cse27) (and .cse28 .cse0 .cse19 .cse11 .cse29 .cse27) (and .cse0 .cse30 .cse31) (and .cse20 .cse13 .cse0 .cse1 .cse26 .cse32 .cse33) (and .cse0 .cse11 .cse3 .cse27 .cse17) (and .cse16 .cse0 .cse2 (<= ~a12~0 76) .cse21) (and .cse18 .cse30 .cse23) (and .cse20 .cse4 .cse15) (and .cse20 .cse0 .cse11 .cse12 .cse33) (and .cse0 .cse8 .cse22 .cse25 .cse26) (and .cse0 .cse7 .cse1 .cse9 .cse34 .cse35) (and .cse0 .cse11 .cse6 .cse25 .cse26) (and .cse0 .cse7 .cse11 .cse9 .cse36 .cse17) (and .cse0 .cse11 .cse29 .cse12 .cse36) (and .cse0 .cse7 .cse11 .cse2 .cse9 .cse27) (and (<= 103531 ~a12~0) (= ~a21~0 8) .cse0 .cse24) (and .cse0 .cse1 .cse2 .cse12 .cse21) (and .cse28 .cse0 .cse19 .cse11 .cse36 .cse17) (and .cse20 .cse0 .cse11 .cse25 .cse26 .cse33) (and .cse0 .cse1 .cse14 .cse34 .cse35) (and .cse18 (not (<= ~a12~0 80)) .cse23 .cse24) (and (not .cse20) .cse0 .cse19 (not .cse29) .cse24) (and .cse0 .cse3 .cse8 .cse34) (and .cse0 .cse11 .cse25 .cse26 .cse36 .cse17) (and .cse20 .cse16 .cse13 .cse0 .cse1 .cse32 .cse21))))) [2022-11-16 11:36:23,358 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-11-16 11:36:23,358 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-11-16 11:36:23,359 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-11-16 11:36:23,359 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-11-16 11:36:23,359 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-16 11:36:23,359 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-11-16 11:36:23,359 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-11-16 11:36:23,359 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-11-16 11:36:23,360 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-11-16 11:36:23,360 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,360 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,360 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-11-16 11:36:23,360 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-11-16 11:36:23,361 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-11-16 11:36:23,361 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-11-16 11:36:23,361 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-16 11:36:23,365 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, 1, 1, 1, 1, 1, 1] [2022-11-16 11:36:23,367 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:36:23,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:36:23 BoogieIcfgContainer [2022-11-16 11:36:23,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:36:23,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:36:23,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:36:23,411 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:36:23,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:30:14" (3/4) ... [2022-11-16 11:36:23,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:36:23,436 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 11:36:23,437 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 11:36:23,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:36:23,440 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:36:23,568 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:36:23,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:36:23,569 INFO L158 Benchmark]: Toolchain (without parser) took 372605.70ms. Allocated memory was 138.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 103.5MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 391.2MB. Max. memory is 16.1GB. [2022-11-16 11:36:23,569 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory was 75.4MB in the beginning and 75.4MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:36:23,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 797.36ms. Allocated memory is still 138.4MB. Free memory was 103.2MB in the beginning and 92.8MB in the end (delta: 10.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:36:23,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.75ms. Allocated memory is still 138.4MB. Free memory was 92.8MB in the beginning and 83.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:36:23,571 INFO L158 Benchmark]: Boogie Preprocessor took 145.49ms. Allocated memory is still 138.4MB. Free memory was 83.1MB in the beginning and 77.4MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 11:36:23,571 INFO L158 Benchmark]: RCFGBuilder took 2038.65ms. Allocated memory is still 138.4MB. Free memory was 76.8MB in the beginning and 81.7MB in the end (delta: -4.9MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2022-11-16 11:36:23,571 INFO L158 Benchmark]: TraceAbstraction took 369352.04ms. Allocated memory was 138.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 80.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 958.0MB. Max. memory is 16.1GB. [2022-11-16 11:36:23,572 INFO L158 Benchmark]: Witness Printer took 157.92ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:36:23,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory was 75.4MB in the beginning and 75.4MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 797.36ms. Allocated memory is still 138.4MB. Free memory was 103.2MB in the beginning and 92.8MB in the end (delta: 10.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.75ms. Allocated memory is still 138.4MB. Free memory was 92.8MB in the beginning and 83.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 145.49ms. Allocated memory is still 138.4MB. Free memory was 83.1MB in the beginning and 77.4MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2038.65ms. Allocated memory is still 138.4MB. Free memory was 76.8MB in the beginning and 81.7MB in the end (delta: -4.9MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * TraceAbstraction took 369352.04ms. Allocated memory was 138.4MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 80.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 958.0MB. Max. memory is 16.1GB. * Witness Printer took 157.92ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB 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: 119]: 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: 369.2s, OverallIterations: 34, TraceHistogramMax: 22, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.7s, AutomataDifference: 26.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 272.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3545 SdHoareTripleChecker+Valid, 24.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3545 mSDsluCounter, 3553 SdHoareTripleChecker+Invalid, 19.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 337 mSDsCounter, 1260 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21193 IncrementalHoareTripleChecker+Invalid, 22453 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1260 mSolverCounterUnsat, 3216 mSDtfsCounter, 21193 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14710 GetRequests, 14600 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6056occurred in iteration=24, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 34 MinimizatonAttempts, 8370 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 135 NumberOfFragments, 1605 HoareAnnotationTreeSize, 3 FomulaSimplifications, 733886 FormulaSimplificationTreeSizeReduction, 266.5s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2208642 FormulaSimplificationTreeSizeReductionInter, 6.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.8s SsaConstructionTime, 5.5s SatisfiabilityAnalysisTime, 52.0s InterpolantComputationTime, 50301 NumberOfCodeBlocks, 50301 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 51071 ConstructedInterpolants, 0 QuantifiedInterpolants, 138039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 17201 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 49 InterpolantComputations, 33 PerfectInterpolantSequences, 246605/249799 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: ((((((((((((((((((((((((((((((((((((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a12 + 9352 <= 0)) || (((a24 == 1 && 7 <= a21) && a15 <= 7) && a21 <= 7)) || (((a12 + 43 <= 0 && a24 == 1) && a15 == 9) && 10 <= a21)) || (((a21 <= 9 && a24 == 1) && a15 <= 6) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 7) && 95382 <= a12)) || (((((((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) && a21 == 9) && a15 == 6)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && a15 == 8)) || ((((((((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) && a12 + 42 <= 0) && a21 == 10) && 7 == a15)) || (((((a12 <= 73282 && a24 == 1) && 20 <= a12) && 8 <= a21) && a21 <= 8) && a15 == 8)) || (((((a24 == 1 && a15 == 9) && 20 <= a12) && 8 <= a21) && a21 <= 8) && a12 <= 586307)) || (((((!(input == 5) && a24 == 1) && a21 == 9) && a15 == 9) && 80 < a12) && a12 <= 586307)) || ((a24 == 1 && 5 == a15) && a21 == 6)) || ((((((a12 <= 11 && a21 <= 9) && a24 == 1) && a15 <= 8) && a21 <= 8) && !(a12 + 43 <= 0)) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 == 9) && a21 <= 6) && a12 <= 586307) && 95382 <= a12)) || ((((9 <= a21 && a24 == 1) && 20 <= a12) && a12 <= 76) && a15 == 8)) || (((((((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) && 5 == a15) && a21 == 10)) || ((a12 <= 11 && ((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0))) && 0 < a12 + 43)) || ((((a12 <= 11 && a24 == 1) && a15 == 9) && 10 <= a21) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 <= 7) && a12 + 42 <= 0) && 8 <= a21) && a21 <= 8)) || (((((a24 == 1 && 7 <= a21) && a15 <= 8) && a21 <= 7) && 49 + a12 <= 0) && !(a21 == 6))) || ((((a24 == 1 && a15 == 9) && a12 + 9352 <= 0) && 8 <= a21) && a21 <= 8)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && a21 <= 7) && a12 <= 599999) && 95382 <= a12)) || ((((a24 == 1 && a15 == 9) && 80 < a12) && 10 <= a21) && a12 <= 599999)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && 20 <= a12) && a21 <= 7) && a12 <= 586307)) || (((103531 <= a12 && a21 == 8) && a24 == 1) && 7 == a15)) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && a15 == 8)) || (((((!(input == 5) && a24 == 1) && a21 == 9) && a15 == 9) && a12 <= 599999) && 95382 <= a12)) || (((((a12 <= 11 && a24 == 1) && a15 == 9) && 8 <= a21) && a21 <= 8) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 <= 8) && a15 <= 6) && 49 + a12 <= 0) && !(a21 == 6))) || ((((((((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) && !(a12 <= 80)) && a21 == 10) && 7 == a15)) || ((((!(a12 <= 11) && a24 == 1) && a21 == 9) && !(80 < a12)) && 7 == a15)) || (((a24 == 1 && a21 <= 6) && a15 <= 7) && 49 + a12 <= 0)) || (((((a24 == 1 && a15 == 9) && 8 <= a21) && a21 <= 8) && a12 <= 599999) && 95382 <= a12)) || ((((((a12 <= 11 && 9 <= a21) && a21 <= 9) && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0)) && a15 == 8) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a12 + 9352 <= 0)) || (((a24 == 1 && 7 <= a21) && a15 <= 7) && a21 <= 7)) || (((a12 + 43 <= 0 && a24 == 1) && a15 == 9) && 10 <= a21)) || (((a21 <= 9 && a24 == 1) && a15 <= 6) && 0 < a12 + 43)) || ((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 7) && 95382 <= a12)) || (((((((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) && a21 == 9) && a15 == 6)) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && a15 == 8)) || ((((((((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) && a12 + 42 <= 0) && a21 == 10) && 7 == a15)) || (((((a12 <= 73282 && a24 == 1) && 20 <= a12) && 8 <= a21) && a21 <= 8) && a15 == 8)) || (((((a24 == 1 && a15 == 9) && 20 <= a12) && 8 <= a21) && a21 <= 8) && a12 <= 586307)) || (((((!(input == 5) && a24 == 1) && a21 == 9) && a15 == 9) && 80 < a12) && a12 <= 586307)) || ((a24 == 1 && 5 == a15) && a21 == 6)) || ((((((a12 <= 11 && a21 <= 9) && a24 == 1) && a15 <= 8) && a21 <= 8) && !(a12 + 43 <= 0)) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 == 9) && a21 <= 6) && a12 <= 586307) && 95382 <= a12)) || ((((9 <= a21 && a24 == 1) && 20 <= a12) && a12 <= 76) && a15 == 8)) || (((((((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) && 5 == a15) && a21 == 10)) || ((a12 <= 11 && ((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0))) && 0 < a12 + 43)) || ((((a12 <= 11 && a24 == 1) && a15 == 9) && 10 <= a21) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 <= 7) && a12 + 42 <= 0) && 8 <= a21) && a21 <= 8)) || (((((a24 == 1 && 7 <= a21) && a15 <= 8) && a21 <= 7) && 49 + a12 <= 0) && !(a21 == 6))) || ((((a24 == 1 && a15 == 9) && a12 + 9352 <= 0) && 8 <= a21) && a21 <= 8)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && a21 <= 7) && a12 <= 599999) && 95382 <= a12)) || ((((a24 == 1 && a15 == 9) && 80 < a12) && 10 <= a21) && a12 <= 599999)) || (((((a24 == 1 && 7 <= a21) && a15 == 9) && 20 <= a12) && a21 <= 7) && a12 <= 586307)) || (((103531 <= a12 && a21 == 8) && a24 == 1) && 7 == a15)) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && a15 == 8)) || (((((!(input == 5) && a24 == 1) && a21 == 9) && a15 == 9) && a12 <= 599999) && 95382 <= a12)) || (((((a12 <= 11 && a24 == 1) && a15 == 9) && 8 <= a21) && a21 <= 8) && 0 <= 41 + a12)) || ((((a24 == 1 && a15 <= 8) && a15 <= 6) && 49 + a12 <= 0) && !(a21 == 6))) || ((((((((a24 == 1 && a15 <= 8) && 10 <= a21) && 95382 <= a12) || ((((a24 == 1 && a15 <= 6) || (a15 <= 6 && 49 + a12 <= 0)) && a12 <= 73282) && a24 == 1)) || (((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21)) && !(a12 <= 80)) && a21 == 10) && 7 == a15)) || ((((!(a12 <= 11) && a24 == 1) && a21 == 9) && !(80 < a12)) && 7 == a15)) || (((a24 == 1 && a21 <= 6) && a15 <= 7) && 49 + a12 <= 0)) || (((((a24 == 1 && a15 == 9) && 8 <= a21) && a21 <= 8) && a12 <= 599999) && 95382 <= a12)) || ((((((a12 <= 11 && 9 <= a21) && a21 <= 9) && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0)) && a15 == 8) RESULT: Ultimate proved your program to be correct! [2022-11-16 11:36:23,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a06d122a-a7aa-4e09-a06a-b4ca2676414f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE