./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.16.cil.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_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/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_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.16.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/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_db002d81-6cc1-4d28-baeb-ac1092f15e01/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 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 --- 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 11:06:15,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:06:15,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:06:15,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:06:15,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:06:15,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:06:15,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:06:15,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:06:15,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:06:15,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:06:15,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:06:15,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:06:15,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:06:15,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:06:15,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:06:15,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:06:15,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:06:15,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:06:15,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:06:15,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:06:15,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:06:15,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:06:15,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:06:15,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:06:15,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:06:15,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:06:15,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:06:15,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:06:15,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:06:15,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:06:15,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:06:15,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:06:15,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:06:15,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:06:15,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:06:15,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:06:15,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:06:15,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:06:15,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:06:15,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:06:15,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:06:15,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:06:15,487 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:06:15,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:06:15,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:06:15,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:06:15,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:06:15,489 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:06:15,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:06:15,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:06:15,491 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:06:15,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:06:15,491 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:06:15,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:06:15,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:06:15,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:06:15,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:06:15,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:06:15,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:06:15,493 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:06:15,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:06:15,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:06:15,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:06:15,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:06:15,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:06:15,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:06:15,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:06:15,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:06:15,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:06:15,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:06:15,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:06:15,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:06:15,496 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:06:15,496 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:06:15,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:06:15,496 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_db002d81-6cc1-4d28-baeb-ac1092f15e01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45519c8273c53879cf6a170ed74d5bc0be814b1f3243ce6c30d1d3efe9a3cf32 [2022-11-16 11:06:15,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:06:15,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:06:15,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:06:15,785 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:06:15,786 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:06:15,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/systemc/transmitter.16.cil.c [2022-11-16 11:06:15,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/data/53362d9e9/38581f46c8ad430c9c1702a1e2a2e6f6/FLAGbc5929042 [2022-11-16 11:06:16,444 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:06:16,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/sv-benchmarks/c/systemc/transmitter.16.cil.c [2022-11-16 11:06:16,459 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/data/53362d9e9/38581f46c8ad430c9c1702a1e2a2e6f6/FLAGbc5929042 [2022-11-16 11:06:16,794 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/data/53362d9e9/38581f46c8ad430c9c1702a1e2a2e6f6 [2022-11-16 11:06:16,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:06:16,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:06:16,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:06:16,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:06:16,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:06:16,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:06:16" (1/1) ... [2022-11-16 11:06:16,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c42c1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:16, skipping insertion in model container [2022-11-16 11:06:16,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:06:16" (1/1) ... [2022-11-16 11:06:16,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:06:16,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:06:17,102 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_db002d81-6cc1-4d28-baeb-ac1092f15e01/sv-benchmarks/c/systemc/transmitter.16.cil.c[706,719] [2022-11-16 11:06:17,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:06:17,249 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:06:17,260 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_db002d81-6cc1-4d28-baeb-ac1092f15e01/sv-benchmarks/c/systemc/transmitter.16.cil.c[706,719] [2022-11-16 11:06:17,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:06:17,349 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:06:17,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17 WrapperNode [2022-11-16 11:06:17,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:06:17,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:06:17,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:06:17,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:06:17,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,371 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,415 INFO L138 Inliner]: procedures = 56, calls = 71, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 945 [2022-11-16 11:06:17,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:06:17,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:06:17,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:06:17,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:06:17,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,491 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:06:17,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:06:17,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:06:17,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:06:17,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (1/1) ... [2022-11-16 11:06:17,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:06:17,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:06:17,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:06:17,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db002d81-6cc1-4d28-baeb-ac1092f15e01/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:06:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:06:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-16 11:06:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-16 11:06:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-16 11:06:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-16 11:06:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-16 11:06:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-16 11:06:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-16 11:06:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-16 11:06:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-16 11:06:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-16 11:06:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-16 11:06:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-16 11:06:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:06:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:06:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:06:17,764 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:06:17,780 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:06:18,898 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:06:18,909 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:06:18,909 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-16 11:06:18,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:18 BoogieIcfgContainer [2022-11-16 11:06:18,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:06:18,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:06:18,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:06:18,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:06:18,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:06:16" (1/3) ... [2022-11-16 11:06:18,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f280723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:06:18, skipping insertion in model container [2022-11-16 11:06:18,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:06:17" (2/3) ... [2022-11-16 11:06:18,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f280723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:06:18, skipping insertion in model container [2022-11-16 11:06:18,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:06:18" (3/3) ... [2022-11-16 11:06:18,921 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2022-11-16 11:06:18,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:06:18,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:06:19,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:06:19,045 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;@61987f8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:06:19,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:06:19,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 390 states have (on average 1.6743589743589744) internal successors, (653), 392 states have internal predecessors, (653), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-16 11:06:19,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:06:19,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:06:19,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:19,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:06:19,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:19,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1676637755, now seen corresponding path program 1 times [2022-11-16 11:06:19,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:19,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765589044] [2022-11-16 11:06:19,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:19,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:19,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:06:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:19,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:06:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:06:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:19,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:06:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:19,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:06:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:19,903 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 11:06:19,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:19,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765589044] [2022-11-16 11:06:19,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765589044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:19,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:19,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:19,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450743558] [2022-11-16 11:06:19,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:19,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:06:19,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:19,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:06:19,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:06:19,962 INFO L87 Difference]: Start difference. First operand has 424 states, 390 states have (on average 1.6743589743589744) internal successors, (653), 392 states have internal predecessors, (653), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:23,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:23,047 INFO L93 Difference]: Finished difference Result 1001 states and 1674 transitions. [2022-11-16 11:06:23,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:23,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:06:23,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:06:23,067 INFO L225 Difference]: With dead ends: 1001 [2022-11-16 11:06:23,067 INFO L226 Difference]: Without dead ends: 581 [2022-11-16 11:06:23,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:06:23,077 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1172 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:06:23,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 822 Invalid, 1215 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-16 11:06:23,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-11-16 11:06:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 419. [2022-11-16 11:06:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.5803108808290156) internal successors, (610), 387 states have internal predecessors, (610), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-16 11:06:23,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 662 transitions. [2022-11-16 11:06:23,208 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 662 transitions. Word has length 195 [2022-11-16 11:06:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:06:23,209 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 662 transitions. [2022-11-16 11:06:23,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 662 transitions. [2022-11-16 11:06:23,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:06:23,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:06:23,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:23,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:06:23,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:06:23,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:23,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1924605949, now seen corresponding path program 1 times [2022-11-16 11:06:23,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:23,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778407994] [2022-11-16 11:06:23,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:23,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:06:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:23,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:06:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:06:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:23,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:06:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:06:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:23,480 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 11:06:23,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:23,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778407994] [2022-11-16 11:06:23,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778407994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:23,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:23,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:06:23,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817953720] [2022-11-16 11:06:23,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:23,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:06:23,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:23,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:06:23,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:06:23,484 INFO L87 Difference]: Start difference. First operand 419 states and 662 transitions. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:26,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:26,064 INFO L93 Difference]: Finished difference Result 984 states and 1574 transitions. [2022-11-16 11:06:26,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:06:26,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:06:26,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:06:26,070 INFO L225 Difference]: With dead ends: 984 [2022-11-16 11:06:26,071 INFO L226 Difference]: Without dead ends: 581 [2022-11-16 11:06:26,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:06:26,074 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 1159 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:06:26,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 808 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 11:06:26,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2022-11-16 11:06:26,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 419. [2022-11-16 11:06:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.577720207253886) internal successors, (609), 387 states have internal predecessors, (609), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-16 11:06:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 661 transitions. [2022-11-16 11:06:26,156 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 661 transitions. Word has length 195 [2022-11-16 11:06:26,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:06:26,157 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 661 transitions. [2022-11-16 11:06:26,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:26,157 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 661 transitions. [2022-11-16 11:06:26,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:06:26,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:06:26,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:26,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:06:26,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:06:26,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:26,162 INFO L85 PathProgramCache]: Analyzing trace with hash -404374593, now seen corresponding path program 1 times [2022-11-16 11:06:26,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:26,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372555697] [2022-11-16 11:06:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:26,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:06:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:06:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:06:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:06:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:06:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:26,507 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 11:06:26,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:26,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372555697] [2022-11-16 11:06:26,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372555697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:26,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:26,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:06:26,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203519880] [2022-11-16 11:06:26,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:26,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:06:26,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:26,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:06:26,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:06:26,510 INFO L87 Difference]: Start difference. First operand 419 states and 661 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:29,825 INFO L93 Difference]: Finished difference Result 1007 states and 1621 transitions. [2022-11-16 11:06:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:06:29,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:06:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:06:29,836 INFO L225 Difference]: With dead ends: 1007 [2022-11-16 11:06:29,836 INFO L226 Difference]: Without dead ends: 610 [2022-11-16 11:06:29,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:06:29,846 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1266 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1368 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 11:06:29,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1368 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 11:06:29,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2022-11-16 11:06:29,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 419. [2022-11-16 11:06:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 386 states have (on average 1.5751295336787565) internal successors, (608), 387 states have internal predecessors, (608), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-16 11:06:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 660 transitions. [2022-11-16 11:06:29,926 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 660 transitions. Word has length 195 [2022-11-16 11:06:29,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:06:29,928 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 660 transitions. [2022-11-16 11:06:29,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:29,929 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 660 transitions. [2022-11-16 11:06:29,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:06:29,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:06:29,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:29,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:06:29,936 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:06:29,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:29,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1907472899, now seen corresponding path program 1 times [2022-11-16 11:06:29,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:29,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268102029] [2022-11-16 11:06:29,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:29,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:30,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:06:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:06:30,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:30,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:06:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:06:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:30,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:06:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:06:30,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:30,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268102029] [2022-11-16 11:06:30,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268102029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:30,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:30,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:06:30,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455861635] [2022-11-16 11:06:30,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:30,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:06:30,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:30,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:06:30,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:06:30,412 INFO L87 Difference]: Start difference. First operand 419 states and 660 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:37,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:37,551 INFO L93 Difference]: Finished difference Result 1998 states and 3199 transitions. [2022-11-16 11:06:37,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:06:37,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:06:37,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:06:37,561 INFO L225 Difference]: With dead ends: 1998 [2022-11-16 11:06:37,561 INFO L226 Difference]: Without dead ends: 1601 [2022-11-16 11:06:37,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:37,564 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 2675 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4136 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2709 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 4213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 4136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:06:37,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2709 Valid, 2699 Invalid, 4213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 4136 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-16 11:06:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-11-16 11:06:37,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 841. [2022-11-16 11:06:37,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 777 states have (on average 1.5868725868725868) internal successors, (1233), 780 states have internal predecessors, (1233), 49 states have call successors, (49), 12 states have call predecessors, (49), 14 states have return successors, (56), 50 states have call predecessors, (56), 49 states have call successors, (56) [2022-11-16 11:06:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1338 transitions. [2022-11-16 11:06:37,716 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1338 transitions. Word has length 195 [2022-11-16 11:06:37,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:06:37,716 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1338 transitions. [2022-11-16 11:06:37,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:37,717 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1338 transitions. [2022-11-16 11:06:37,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:06:37,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:06:37,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:37,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:06:37,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:06:37,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1817412609, now seen corresponding path program 1 times [2022-11-16 11:06:37,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:37,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701716716] [2022-11-16 11:06:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:37,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:06:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:06:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:06:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:06:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:38,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:06:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:38,068 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 11:06:38,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:38,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701716716] [2022-11-16 11:06:38,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701716716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:38,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:38,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:06:38,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562468122] [2022-11-16 11:06:38,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:38,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:06:38,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:38,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:06:38,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:06:38,073 INFO L87 Difference]: Start difference. First operand 841 states and 1338 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:45,296 INFO L93 Difference]: Finished difference Result 3894 states and 6207 transitions. [2022-11-16 11:06:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:06:45,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:06:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:06:45,314 INFO L225 Difference]: With dead ends: 3894 [2022-11-16 11:06:45,315 INFO L226 Difference]: Without dead ends: 3077 [2022-11-16 11:06:45,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:45,319 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 2733 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 3879 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 2591 SdHoareTripleChecker+Invalid, 3962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 3879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:06:45,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2767 Valid, 2591 Invalid, 3962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 3879 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 11:06:45,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-11-16 11:06:45,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 1620. [2022-11-16 11:06:45,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1620 states, 1500 states have (on average 1.5786666666666667) internal successors, (2368), 1505 states have internal predecessors, (2368), 91 states have call successors, (91), 24 states have call predecessors, (91), 28 states have return successors, (108), 94 states have call predecessors, (108), 91 states have call successors, (108) [2022-11-16 11:06:45,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1620 states to 1620 states and 2567 transitions. [2022-11-16 11:06:45,682 INFO L78 Accepts]: Start accepts. Automaton has 1620 states and 2567 transitions. Word has length 195 [2022-11-16 11:06:45,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:06:45,683 INFO L495 AbstractCegarLoop]: Abstraction has 1620 states and 2567 transitions. [2022-11-16 11:06:45,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1620 states and 2567 transitions. [2022-11-16 11:06:45,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:06:45,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:06:45,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:45,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:06:45,688 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:06:45,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:45,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1787723197, now seen corresponding path program 1 times [2022-11-16 11:06:45,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:45,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917647422] [2022-11-16 11:06:45,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:45,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:45,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:06:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:06:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:06:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:06:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:46,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:06:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:46,030 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 11:06:46,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:46,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917647422] [2022-11-16 11:06:46,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917647422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:46,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:46,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:06:46,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209932411] [2022-11-16 11:06:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:46,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:06:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:06:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:06:46,034 INFO L87 Difference]: Start difference. First operand 1620 states and 2567 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:06:54,191 INFO L93 Difference]: Finished difference Result 7623 states and 12108 transitions. [2022-11-16 11:06:54,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:06:54,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:06:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:06:54,221 INFO L225 Difference]: With dead ends: 7623 [2022-11-16 11:06:54,222 INFO L226 Difference]: Without dead ends: 6027 [2022-11-16 11:06:54,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:06:54,229 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2677 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4110 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-16 11:06:54,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2696 Invalid, 4189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4110 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-16 11:06:54,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6027 states. [2022-11-16 11:06:54,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6027 to 3181. [2022-11-16 11:06:54,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2949 states have (on average 1.5740929128518142) internal successors, (4642), 2958 states have internal predecessors, (4642), 175 states have call successors, (175), 48 states have call predecessors, (175), 56 states have return successors, (218), 182 states have call predecessors, (218), 175 states have call successors, (218) [2022-11-16 11:06:54,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 5035 transitions. [2022-11-16 11:06:54,884 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 5035 transitions. Word has length 195 [2022-11-16 11:06:54,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:06:54,886 INFO L495 AbstractCegarLoop]: Abstraction has 3181 states and 5035 transitions. [2022-11-16 11:06:54,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:06:54,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 5035 transitions. [2022-11-16 11:06:54,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:06:54,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:06:54,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:06:54,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:06:54,892 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:06:54,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:06:54,892 INFO L85 PathProgramCache]: Analyzing trace with hash 379997247, now seen corresponding path program 1 times [2022-11-16 11:06:54,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:06:54,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095367540] [2022-11-16 11:06:54,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:06:54,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:06:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:06:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:55,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:06:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:55,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:06:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:55,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:06:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:55,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:06:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:06:55,254 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 11:06:55,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:06:55,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095367540] [2022-11-16 11:06:55,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095367540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:06:55,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:06:55,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:06:55,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663851355] [2022-11-16 11:06:55,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:06:55,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:06:55,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:06:55,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:06:55,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:06:55,258 INFO L87 Difference]: Start difference. First operand 3181 states and 5035 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:07:04,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:04,959 INFO L93 Difference]: Finished difference Result 15080 states and 23926 transitions. [2022-11-16 11:07:04,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:07:04,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:07:04,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:05,012 INFO L225 Difference]: With dead ends: 15080 [2022-11-16 11:07:05,012 INFO L226 Difference]: Without dead ends: 11923 [2022-11-16 11:07:05,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:05,026 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2677 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4101 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:05,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2696 Invalid, 4180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4101 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 11:07:05,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11923 states. [2022-11-16 11:07:06,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11923 to 6310. [2022-11-16 11:07:06,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 5854 states have (on average 1.5715749914588315) internal successors, (9200), 5871 states have internal predecessors, (9200), 343 states have call successors, (343), 96 states have call predecessors, (343), 112 states have return successors, (456), 358 states have call predecessors, (456), 343 states have call successors, (456) [2022-11-16 11:07:06,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 9999 transitions. [2022-11-16 11:07:06,389 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 9999 transitions. Word has length 195 [2022-11-16 11:07:06,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:06,390 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 9999 transitions. [2022-11-16 11:07:06,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:07:06,391 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 9999 transitions. [2022-11-16 11:07:06,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:07:06,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:06,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:06,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:07:06,396 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:07:06,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:06,397 INFO L85 PathProgramCache]: Analyzing trace with hash 888776061, now seen corresponding path program 1 times [2022-11-16 11:07:06,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:06,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964864591] [2022-11-16 11:07:06,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:06,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:06,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:07:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:07:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:07:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:07:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:06,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:07:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:06,727 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 11:07:06,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:06,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964864591] [2022-11-16 11:07:06,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964864591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:06,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:06,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:07:06,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333449119] [2022-11-16 11:07:06,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:06,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:07:06,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:06,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:07:06,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:06,730 INFO L87 Difference]: Start difference. First operand 6310 states and 9999 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:07:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:20,446 INFO L93 Difference]: Finished difference Result 29993 states and 47620 transitions. [2022-11-16 11:07:20,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:07:20,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:07:20,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:20,532 INFO L225 Difference]: With dead ends: 29993 [2022-11-16 11:07:20,532 INFO L226 Difference]: Without dead ends: 23707 [2022-11-16 11:07:20,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:20,557 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2677 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2711 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:20,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2711 Valid, 2696 Invalid, 4171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-16 11:07:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23707 states. [2022-11-16 11:07:23,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23707 to 12583. [2022-11-16 11:07:23,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12583 states, 11679 states have (on average 1.5701686788252418) internal successors, (18338), 11712 states have internal predecessors, (18338), 679 states have call successors, (679), 192 states have call predecessors, (679), 224 states have return successors, (986), 710 states have call predecessors, (986), 679 states have call successors, (986) [2022-11-16 11:07:23,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12583 states to 12583 states and 20003 transitions. [2022-11-16 11:07:23,075 INFO L78 Accepts]: Start accepts. Automaton has 12583 states and 20003 transitions. Word has length 195 [2022-11-16 11:07:23,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:23,075 INFO L495 AbstractCegarLoop]: Abstraction has 12583 states and 20003 transitions. [2022-11-16 11:07:23,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:07:23,076 INFO L276 IsEmpty]: Start isEmpty. Operand 12583 states and 20003 transitions. [2022-11-16 11:07:23,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:07:23,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:23,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:23,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:07:23,083 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:07:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:23,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1034474369, now seen corresponding path program 1 times [2022-11-16 11:07:23,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:23,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094746361] [2022-11-16 11:07:23,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:23,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:23,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:07:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:07:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:07:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:23,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:07:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:07:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:23,387 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 11:07:23,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:23,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094746361] [2022-11-16 11:07:23,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094746361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:23,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:23,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:07:23,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579841223] [2022-11-16 11:07:23,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:23,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:07:23,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:23,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:07:23,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:23,394 INFO L87 Difference]: Start difference. First operand 12583 states and 20003 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:07:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:07:45,021 INFO L93 Difference]: Finished difference Result 59818 states and 95198 transitions. [2022-11-16 11:07:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:07:45,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:07:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:07:45,191 INFO L225 Difference]: With dead ends: 59818 [2022-11-16 11:07:45,192 INFO L226 Difference]: Without dead ends: 47259 [2022-11-16 11:07:45,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-16 11:07:45,251 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 2683 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 4078 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 4157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:07:45,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 2696 Invalid, 4157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 4078 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-16 11:07:45,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47259 states. [2022-11-16 11:07:50,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47259 to 25160. [2022-11-16 11:07:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25160 states, 23360 states have (on average 1.5693493150684932) internal successors, (36660), 23425 states have internal predecessors, (36660), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2022-11-16 11:07:50,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40219 transitions. [2022-11-16 11:07:50,453 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40219 transitions. Word has length 195 [2022-11-16 11:07:50,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:07:50,454 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40219 transitions. [2022-11-16 11:07:50,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:07:50,455 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40219 transitions. [2022-11-16 11:07:50,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:07:50,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:07:50,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:07:50,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:07:50,473 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:07:50,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:07:50,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1535884605, now seen corresponding path program 1 times [2022-11-16 11:07:50,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:07:50,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309066074] [2022-11-16 11:07:50,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:07:50,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:07:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:50,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:07:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:50,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:07:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:50,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:07:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:07:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:50,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:07:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:07:50,843 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 11:07:50,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:07:50,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309066074] [2022-11-16 11:07:50,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309066074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:07:50,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:07:50,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:07:50,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690952197] [2022-11-16 11:07:50,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:07:50,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:07:50,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:07:50,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:07:50,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:07:50,846 INFO L87 Difference]: Start difference. First operand 25160 states and 40219 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:08:03,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:03,403 INFO L93 Difference]: Finished difference Result 59727 states and 96857 transitions. [2022-11-16 11:08:03,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:08:03,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:08:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:03,544 INFO L225 Difference]: With dead ends: 59727 [2022-11-16 11:08:03,545 INFO L226 Difference]: Without dead ends: 34589 [2022-11-16 11:08:03,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:08:03,621 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1274 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:03,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 1367 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-16 11:08:03,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34589 states. [2022-11-16 11:08:08,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34589 to 25160. [2022-11-16 11:08:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25160 states, 23360 states have (on average 1.566566780821918) internal successors, (36595), 23425 states have internal predecessors, (36595), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2022-11-16 11:08:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40154 transitions. [2022-11-16 11:08:08,846 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40154 transitions. Word has length 195 [2022-11-16 11:08:08,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:08,847 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40154 transitions. [2022-11-16 11:08:08,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:08:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40154 transitions. [2022-11-16 11:08:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:08:08,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:08,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:08,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:08:08,859 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:08:08,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:08,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2106156411, now seen corresponding path program 1 times [2022-11-16 11:08:08,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:08,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222704733] [2022-11-16 11:08:08,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:08,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:08,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:08:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:09,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:08:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:09,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:08:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:09,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:08:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:09,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:08:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:09,137 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 11:08:09,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:09,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222704733] [2022-11-16 11:08:09,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222704733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:09,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:09,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:08:09,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918166227] [2022-11-16 11:08:09,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:09,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:08:09,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:09,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:08:09,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:08:09,140 INFO L87 Difference]: Start difference. First operand 25160 states and 40154 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:08:20,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:08:20,520 INFO L93 Difference]: Finished difference Result 59663 states and 96535 transitions. [2022-11-16 11:08:20,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:08:20,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 195 [2022-11-16 11:08:20,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:08:20,774 INFO L225 Difference]: With dead ends: 59663 [2022-11-16 11:08:20,774 INFO L226 Difference]: Without dead ends: 34525 [2022-11-16 11:08:20,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:08:20,827 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1461 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:08:20,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1148 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-16 11:08:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34525 states. [2022-11-16 11:08:25,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34525 to 25160. [2022-11-16 11:08:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25160 states, 23360 states have (on average 1.5637842465753424) internal successors, (36530), 23425 states have internal predecessors, (36530), 1351 states have call successors, (1351), 384 states have call predecessors, (1351), 448 states have return successors, (2208), 1414 states have call predecessors, (2208), 1351 states have call successors, (2208) [2022-11-16 11:08:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25160 states to 25160 states and 40089 transitions. [2022-11-16 11:08:26,046 INFO L78 Accepts]: Start accepts. Automaton has 25160 states and 40089 transitions. Word has length 195 [2022-11-16 11:08:26,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:08:26,046 INFO L495 AbstractCegarLoop]: Abstraction has 25160 states and 40089 transitions. [2022-11-16 11:08:26,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-16 11:08:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 25160 states and 40089 transitions. [2022-11-16 11:08:26,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-16 11:08:26,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:08:26,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:08:26,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:08:26,061 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:08:26,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash -784941699, now seen corresponding path program 1 times [2022-11-16 11:08:26,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:26,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561698359] [2022-11-16 11:08:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:26,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 11:08:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-16 11:08:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-16 11:08:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 11:08:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:26,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 11:08:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:26,420 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 11:08:26,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:26,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561698359] [2022-11-16 11:08:26,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561698359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:26,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:26,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:08:26,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586514498] [2022-11-16 11:08:26,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:26,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:08:26,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:26,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:08:26,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:08:26,423 INFO L87 Difference]: Start difference. First operand 25160 states and 40089 transitions. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)