./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 21dc9f7e2ddd4ffb05ac36477bf46e7266bc68ad137742c8de338dbab6571869 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:54:06,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:54:06,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:54:06,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:54:06,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:54:06,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:54:06,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:54:06,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:54:06,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:54:06,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:54:06,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:54:06,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:54:06,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:54:06,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:54:06,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:54:06,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:54:06,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:54:06,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:54:06,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:54:06,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:54:06,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:54:06,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:54:06,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:54:06,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:54:06,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:54:06,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:54:06,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:54:06,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:54:06,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:54:06,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:54:06,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:54:06,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:54:06,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:54:06,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:54:06,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:54:06,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:54:06,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:54:06,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:54:06,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:54:06,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:54:06,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:54:06,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:54:06,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:54:06,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:54:06,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:54:06,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:54:06,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:54:06,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:54:06,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:54:06,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:54:06,673 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:54:06,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:54:06,675 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:54:06,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:54:06,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:54:06,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:54:06,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:54:06,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:54:06,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:54:06,676 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:54:06,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:54:06,677 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:54:06,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:54:06,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:54:06,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:54:06,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:54:06,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:54:06,678 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:54:06,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:54:06,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:54:06,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:54:06,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:54:06,679 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:54:06,680 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:54:06,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:54:06,680 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_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21dc9f7e2ddd4ffb05ac36477bf46e7266bc68ad137742c8de338dbab6571869 [2022-11-21 16:54:07,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:54:07,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:54:07,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:54:07,045 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:54:07,046 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:54:07,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c [2022-11-21 16:54:10,206 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:54:10,554 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:54:10,554 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c [2022-11-21 16:54:10,576 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/data/13656a06a/b6012cfc946f4e30b0e9103b57887597/FLAGf56700da9 [2022-11-21 16:54:10,607 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/data/13656a06a/b6012cfc946f4e30b0e9103b57887597 [2022-11-21 16:54:10,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:54:10,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:54:10,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:54:10,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:54:10,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:54:10,623 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:54:10" (1/1) ... [2022-11-21 16:54:10,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e12bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:10, skipping insertion in model container [2022-11-21 16:54:10,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:54:10" (1/1) ... [2022-11-21 16:54:10,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:54:10,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:54:10,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c[5910,5923] [2022-11-21 16:54:11,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:54:11,276 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:54:11,310 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c[5910,5923] [2022-11-21 16:54:11,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:54:11,505 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:54:11,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11 WrapperNode [2022-11-21 16:54:11,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:54:11,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:54:11,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:54:11,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:54:11,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,587 INFO L138 Inliner]: procedures = 97, calls = 346, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 925 [2022-11-21 16:54:11,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:54:11,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:54:11,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:54:11,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:54:11,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:54:11,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:54:11,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:54:11,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:54:11,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (1/1) ... [2022-11-21 16:54:11,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:54:11,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:54:11,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:54:11,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:54:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-11-21 16:54:11,758 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-11-21 16:54:11,758 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-11-21 16:54:11,758 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-11-21 16:54:11,759 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-11-21 16:54:11,759 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-11-21 16:54:11,759 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2022-11-21 16:54:11,761 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2022-11-21 16:54:11,762 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-21 16:54:11,762 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-21 16:54:11,762 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-11-21 16:54:11,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-11-21 16:54:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-11-21 16:54:11,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-11-21 16:54:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-11-21 16:54:11,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-11-21 16:54:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-11-21 16:54:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-11-21 16:54:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-11-21 16:54:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-11-21 16:54:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-11-21 16:54:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-11-21 16:54:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:54:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-11-21 16:54:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-11-21 16:54:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-11-21 16:54:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-11-21 16:54:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-11-21 16:54:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-11-21 16:54:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-11-21 16:54:11,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-11-21 16:54:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-21 16:54:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-21 16:54:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-11-21 16:54:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-11-21 16:54:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-11-21 16:54:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-11-21 16:54:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-11-21 16:54:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-11-21 16:54:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-11-21 16:54:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-11-21 16:54:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-11-21 16:54:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-11-21 16:54:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-11-21 16:54:11,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-11-21 16:54:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-11-21 16:54:11,771 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-11-21 16:54:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2022-11-21 16:54:11,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2022-11-21 16:54:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:54:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-11-21 16:54:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-11-21 16:54:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:54:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:54:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-11-21 16:54:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-11-21 16:54:11,968 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:54:11,976 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:54:13,275 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:54:13,302 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:54:13,305 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:54:13,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:54:13 BoogieIcfgContainer [2022-11-21 16:54:13,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:54:13,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:54:13,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:54:13,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:54:13,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:54:10" (1/3) ... [2022-11-21 16:54:13,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0148e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:54:13, skipping insertion in model container [2022-11-21 16:54:13,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:54:11" (2/3) ... [2022-11-21 16:54:13,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0148e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:54:13, skipping insertion in model container [2022-11-21 16:54:13,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:54:13" (3/3) ... [2022-11-21 16:54:13,330 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product31.cil.c [2022-11-21 16:54:13,359 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:54:13,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:54:13,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:54:13,439 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;@74433326, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:54:13,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:54:13,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 587 states, 460 states have (on average 1.682608695652174) internal successors, (774), 481 states have internal predecessors, (774), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) [2022-11-21 16:54:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-21 16:54:13,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:54:13,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:13,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:54:13,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:13,484 INFO L85 PathProgramCache]: Analyzing trace with hash 450011275, now seen corresponding path program 1 times [2022-11-21 16:54:13,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:13,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5710441] [2022-11-21 16:54:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:13,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-21 16:54:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-21 16:54:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:54:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:54:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:54:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:54:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:54:14,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:14,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5710441] [2022-11-21 16:54:14,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5710441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:14,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:14,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:54:14,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893358372] [2022-11-21 16:54:14,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:14,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:54:14,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:14,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:54:14,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:54:14,783 INFO L87 Difference]: Start difference. First operand has 587 states, 460 states have (on average 1.682608695652174) internal successors, (774), 481 states have internal predecessors, (774), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:22,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:54:22,737 INFO L93 Difference]: Finished difference Result 1395 states and 2347 transitions. [2022-11-21 16:54:22,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:54:22,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2022-11-21 16:54:22,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:54:22,763 INFO L225 Difference]: With dead ends: 1395 [2022-11-21 16:54:22,764 INFO L226 Difference]: Without dead ends: 820 [2022-11-21 16:54:22,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:54:22,778 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1012 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:54:22,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 1775 Invalid, 3418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [245 Valid, 3173 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-21 16:54:22,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-11-21 16:54:23,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 579. [2022-11-21 16:54:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.6784140969162995) internal successors, (762), 473 states have internal predecessors, (762), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:54:23,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 955 transitions. [2022-11-21 16:54:23,049 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 955 transitions. Word has length 106 [2022-11-21 16:54:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:54:23,050 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 955 transitions. [2022-11-21 16:54:23,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 955 transitions. [2022-11-21 16:54:23,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-21 16:54:23,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:54:23,057 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:23,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:54:23,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:54:23,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:23,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1974609341, now seen corresponding path program 1 times [2022-11-21 16:54:23,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:23,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057635131] [2022-11-21 16:54:23,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:23,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 16:54:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:54:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:54:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:54:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:54:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:54:23,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:23,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057635131] [2022-11-21 16:54:23,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057635131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:23,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:23,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:54:23,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32347520] [2022-11-21 16:54:23,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:23,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:54:23,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:23,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:54:23,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:54:23,673 INFO L87 Difference]: Start difference. First operand 579 states and 955 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:30,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:54:30,392 INFO L93 Difference]: Finished difference Result 1381 states and 2309 transitions. [2022-11-21 16:54:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:54:30,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2022-11-21 16:54:30,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:54:30,407 INFO L225 Difference]: With dead ends: 1381 [2022-11-21 16:54:30,407 INFO L226 Difference]: Without dead ends: 820 [2022-11-21 16:54:30,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:54:30,421 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1491 mSDsluCounter, 1234 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 3366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-21 16:54:30,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 1684 Invalid, 3366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [402 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-21 16:54:30,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-11-21 16:54:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 579. [2022-11-21 16:54:30,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.6762114537444934) internal successors, (761), 473 states have internal predecessors, (761), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:54:30,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 954 transitions. [2022-11-21 16:54:30,589 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 954 transitions. Word has length 109 [2022-11-21 16:54:30,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:54:30,589 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 954 transitions. [2022-11-21 16:54:30,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:30,590 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 954 transitions. [2022-11-21 16:54:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-21 16:54:30,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:54:30,594 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:30,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:54:30,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:54:30,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:30,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1927851990, now seen corresponding path program 1 times [2022-11-21 16:54:30,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:30,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686104783] [2022-11-21 16:54:30,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:30,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:30,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-21 16:54:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 16:54:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:54:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:54:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:54:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:54:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:54:31,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:31,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686104783] [2022-11-21 16:54:31,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686104783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:31,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:31,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:54:31,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841445189] [2022-11-21 16:54:31,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:31,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:54:31,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:31,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:54:31,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:54:31,261 INFO L87 Difference]: Start difference. First operand 579 states and 954 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:37,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:54:37,773 INFO L93 Difference]: Finished difference Result 1381 states and 2308 transitions. [2022-11-21 16:54:37,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:54:37,774 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2022-11-21 16:54:37,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:54:37,784 INFO L225 Difference]: With dead ends: 1381 [2022-11-21 16:54:37,784 INFO L226 Difference]: Without dead ends: 820 [2022-11-21 16:54:37,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:54:37,796 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 1965 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 2911 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 3479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 2911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:54:37,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 1615 Invalid, 3479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [568 Valid, 2911 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-21 16:54:37,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-11-21 16:54:37,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 579. [2022-11-21 16:54:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.6740088105726871) internal successors, (760), 473 states have internal predecessors, (760), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:54:37,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 953 transitions. [2022-11-21 16:54:37,952 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 953 transitions. Word has length 110 [2022-11-21 16:54:37,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:54:37,953 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 953 transitions. [2022-11-21 16:54:37,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:37,953 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 953 transitions. [2022-11-21 16:54:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-21 16:54:37,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:54:37,960 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:37,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:54:37,960 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:54:37,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:37,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1635088295, now seen corresponding path program 1 times [2022-11-21 16:54:37,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:37,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53670678] [2022-11-21 16:54:37,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:37,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 16:54:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 16:54:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:54:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:54:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:54:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:54:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:38,460 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:54:38,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:38,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53670678] [2022-11-21 16:54:38,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53670678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:38,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:38,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:54:38,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142450136] [2022-11-21 16:54:38,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:38,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:54:38,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:38,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:54:38,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:54:38,463 INFO L87 Difference]: Start difference. First operand 579 states and 953 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:45,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:54:45,472 INFO L93 Difference]: Finished difference Result 1381 states and 2307 transitions. [2022-11-21 16:54:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:54:45,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2022-11-21 16:54:45,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:54:45,482 INFO L225 Difference]: With dead ends: 1381 [2022-11-21 16:54:45,482 INFO L226 Difference]: Without dead ends: 820 [2022-11-21 16:54:45,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:54:45,486 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1001 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3170 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 3414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 3170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:54:45,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 1740 Invalid, 3414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [244 Valid, 3170 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-21 16:54:45,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-11-21 16:54:45,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 579. [2022-11-21 16:54:45,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.671806167400881) internal successors, (759), 473 states have internal predecessors, (759), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:54:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 952 transitions. [2022-11-21 16:54:45,632 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 952 transitions. Word has length 111 [2022-11-21 16:54:45,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:54:45,632 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 952 transitions. [2022-11-21 16:54:45,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 952 transitions. [2022-11-21 16:54:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-21 16:54:45,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:54:45,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:45,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:54:45,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:54:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1764417458, now seen corresponding path program 1 times [2022-11-21 16:54:45,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:45,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576574809] [2022-11-21 16:54:45,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:45,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:45,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 16:54:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-21 16:54:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:54:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:54:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:54:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:54:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:46,176 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:54:46,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:46,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576574809] [2022-11-21 16:54:46,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576574809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:46,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:46,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:54:46,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906090336] [2022-11-21 16:54:46,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:46,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:54:46,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:46,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:54:46,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:54:46,179 INFO L87 Difference]: Start difference. First operand 579 states and 952 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:52,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:54:52,506 INFO L93 Difference]: Finished difference Result 1381 states and 2306 transitions. [2022-11-21 16:54:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:54:52,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2022-11-21 16:54:52,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:54:52,512 INFO L225 Difference]: With dead ends: 1381 [2022-11-21 16:54:52,512 INFO L226 Difference]: Without dead ends: 820 [2022-11-21 16:54:52,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:54:52,516 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1949 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 2907 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 3470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 2907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:54:52,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2028 Valid, 1634 Invalid, 3470 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [563 Valid, 2907 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-21 16:54:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-11-21 16:54:52,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 579. [2022-11-21 16:54:52,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.669603524229075) internal successors, (758), 473 states have internal predecessors, (758), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:54:52,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 951 transitions. [2022-11-21 16:54:52,654 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 951 transitions. Word has length 112 [2022-11-21 16:54:52,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:54:52,654 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 951 transitions. [2022-11-21 16:54:52,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:52,654 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 951 transitions. [2022-11-21 16:54:52,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-21 16:54:52,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:54:52,658 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:52,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:54:52,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:54:52,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:52,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1956418293, now seen corresponding path program 1 times [2022-11-21 16:54:52,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:52,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858242978] [2022-11-21 16:54:52,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:52,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:52,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:54:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:52,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:54:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:54:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:54:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:54:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:54:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:54:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:54:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:54:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:54:53,244 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:54:53,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:54:53,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858242978] [2022-11-21 16:54:53,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858242978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:54:53,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:54:53,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:54:53,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422036131] [2022-11-21 16:54:53,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:54:53,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:54:53,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:54:53,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:54:53,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:54:53,247 INFO L87 Difference]: Start difference. First operand 579 states and 951 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:54:59,640 INFO L93 Difference]: Finished difference Result 1341 states and 2230 transitions. [2022-11-21 16:54:59,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:54:59,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2022-11-21 16:54:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:54:59,647 INFO L225 Difference]: With dead ends: 1341 [2022-11-21 16:54:59,647 INFO L226 Difference]: Without dead ends: 820 [2022-11-21 16:54:59,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:54:59,651 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 1584 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 2868 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 3270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 2868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:54:59,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 1694 Invalid, 3270 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [402 Valid, 2868 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-21 16:54:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-11-21 16:54:59,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 579. [2022-11-21 16:54:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.658590308370044) internal successors, (753), 473 states have internal predecessors, (753), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:54:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 946 transitions. [2022-11-21 16:54:59,825 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 946 transitions. Word has length 113 [2022-11-21 16:54:59,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:54:59,826 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 946 transitions. [2022-11-21 16:54:59,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:54:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 946 transitions. [2022-11-21 16:54:59,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-21 16:54:59,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:54:59,831 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:54:59,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:54:59,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:54:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:54:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash -2092191242, now seen corresponding path program 1 times [2022-11-21 16:54:59,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:54:59,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860371392] [2022-11-21 16:54:59,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:54:59,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:54:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:55:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:55:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-21 16:55:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:55:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:55:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:55:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:55:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:00,383 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:55:00,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:00,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860371392] [2022-11-21 16:55:00,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860371392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:00,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:00,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:55:00,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267990922] [2022-11-21 16:55:00,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:00,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:55:00,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:00,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:55:00,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:55:00,386 INFO L87 Difference]: Start difference. First operand 579 states and 946 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:06,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:55:06,598 INFO L93 Difference]: Finished difference Result 1341 states and 2225 transitions. [2022-11-21 16:55:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:55:06,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-11-21 16:55:06,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:55:06,606 INFO L225 Difference]: With dead ends: 1341 [2022-11-21 16:55:06,606 INFO L226 Difference]: Without dead ends: 820 [2022-11-21 16:55:06,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:55:06,610 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 2045 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 2797 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2124 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 3366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 2797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:55:06,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2124 Valid, 1618 Invalid, 3366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [569 Valid, 2797 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-21 16:55:06,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-11-21 16:55:06,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 579. [2022-11-21 16:55:06,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.6475770925110131) internal successors, (748), 473 states have internal predecessors, (748), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:55:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 941 transitions. [2022-11-21 16:55:06,792 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 941 transitions. Word has length 114 [2022-11-21 16:55:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:55:06,794 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 941 transitions. [2022-11-21 16:55:06,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 941 transitions. [2022-11-21 16:55:06,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-21 16:55:06,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:55:06,803 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:06,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:55:06,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:55:06,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:06,805 INFO L85 PathProgramCache]: Analyzing trace with hash -676901862, now seen corresponding path program 1 times [2022-11-21 16:55:06,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:06,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747291330] [2022-11-21 16:55:06,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:06,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:55:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:55:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 16:55:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:55:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:55:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:55:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:55:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:07,405 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:55:07,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:07,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747291330] [2022-11-21 16:55:07,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747291330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:07,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:07,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:55:07,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025450890] [2022-11-21 16:55:07,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:07,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:55:07,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:07,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:55:07,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:55:07,411 INFO L87 Difference]: Start difference. First operand 579 states and 941 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:14,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:55:14,702 INFO L93 Difference]: Finished difference Result 1341 states and 2220 transitions. [2022-11-21 16:55:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:55:14,703 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2022-11-21 16:55:14,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:55:14,708 INFO L225 Difference]: With dead ends: 1341 [2022-11-21 16:55:14,708 INFO L226 Difference]: Without dead ends: 820 [2022-11-21 16:55:14,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:55:14,712 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1101 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:55:14,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1743 Invalid, 3267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [249 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-21 16:55:14,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2022-11-21 16:55:14,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 579. [2022-11-21 16:55:14,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 454 states have (on average 1.6365638766519823) internal successors, (743), 473 states have internal predecessors, (743), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:55:14,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 936 transitions. [2022-11-21 16:55:14,856 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 936 transitions. Word has length 115 [2022-11-21 16:55:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:55:14,856 INFO L495 AbstractCegarLoop]: Abstraction has 579 states and 936 transitions. [2022-11-21 16:55:14,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:14,857 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 936 transitions. [2022-11-21 16:55:14,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-21 16:55:14,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:55:14,861 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:14,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:55:14,862 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:55:14,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash -825718692, now seen corresponding path program 1 times [2022-11-21 16:55:14,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:14,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324884281] [2022-11-21 16:55:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:14,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:55:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:55:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:55:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:55:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:55:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:55:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:55:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:55:15,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:15,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324884281] [2022-11-21 16:55:15,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324884281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:15,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:15,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:55:15,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59903570] [2022-11-21 16:55:15,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:15,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:55:15,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:15,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:55:15,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:55:15,467 INFO L87 Difference]: Start difference. First operand 579 states and 936 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:23,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:55:23,659 INFO L93 Difference]: Finished difference Result 1356 states and 2235 transitions. [2022-11-21 16:55:23,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:55:23,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2022-11-21 16:55:23,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:55:23,665 INFO L225 Difference]: With dead ends: 1356 [2022-11-21 16:55:23,666 INFO L226 Difference]: Without dead ends: 841 [2022-11-21 16:55:23,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:55:23,669 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 1070 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 3282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:55:23,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 1764 Invalid, 3282 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [244 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-21 16:55:23,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2022-11-21 16:55:23,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 581. [2022-11-21 16:55:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 456 states have (on average 1.6337719298245614) internal successors, (745), 475 states have internal predecessors, (745), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:55:23,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 938 transitions. [2022-11-21 16:55:23,863 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 938 transitions. Word has length 116 [2022-11-21 16:55:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:55:23,863 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 938 transitions. [2022-11-21 16:55:23,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 938 transitions. [2022-11-21 16:55:23,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-21 16:55:23,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:55:23,869 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:23,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:55:23,869 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:55:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1679437957, now seen corresponding path program 1 times [2022-11-21 16:55:23,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:23,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612013675] [2022-11-21 16:55:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:23,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:55:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:55:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 16:55:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:55:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:55:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:55:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:55:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:55:24,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:24,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612013675] [2022-11-21 16:55:24,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612013675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:24,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:24,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:55:24,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292493787] [2022-11-21 16:55:24,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:24,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:55:24,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:24,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:55:24,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:55:24,479 INFO L87 Difference]: Start difference. First operand 581 states and 938 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:31,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:55:31,634 INFO L93 Difference]: Finished difference Result 1347 states and 2221 transitions. [2022-11-21 16:55:31,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:55:31,642 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2022-11-21 16:55:31,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:55:31,646 INFO L225 Difference]: With dead ends: 1347 [2022-11-21 16:55:31,646 INFO L226 Difference]: Without dead ends: 824 [2022-11-21 16:55:31,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:55:31,648 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1088 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 3250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:55:31,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1739 Invalid, 3250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [248 Valid, 3002 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-21 16:55:31,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-11-21 16:55:31,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 581. [2022-11-21 16:55:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 456 states have (on average 1.6228070175438596) internal successors, (740), 475 states have internal predecessors, (740), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:55:31,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 933 transitions. [2022-11-21 16:55:31,833 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 933 transitions. Word has length 116 [2022-11-21 16:55:31,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:55:31,834 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 933 transitions. [2022-11-21 16:55:31,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:31,834 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 933 transitions. [2022-11-21 16:55:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-21 16:55:31,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:55:31,838 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:31,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:55:31,839 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:55:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:31,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1151855748, now seen corresponding path program 1 times [2022-11-21 16:55:31,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:31,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346861323] [2022-11-21 16:55:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:31,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:55:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:55:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:55:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:55:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:55:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:55:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:55:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:55:32,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:32,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346861323] [2022-11-21 16:55:32,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346861323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:32,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:32,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:55:32,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844144232] [2022-11-21 16:55:32,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:32,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:55:32,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:32,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:55:32,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:55:32,412 INFO L87 Difference]: Start difference. First operand 581 states and 933 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:39,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:55:39,806 INFO L93 Difference]: Finished difference Result 1360 states and 2232 transitions. [2022-11-21 16:55:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:55:39,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2022-11-21 16:55:39,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:55:39,812 INFO L225 Difference]: With dead ends: 1360 [2022-11-21 16:55:39,812 INFO L226 Difference]: Without dead ends: 845 [2022-11-21 16:55:39,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:55:39,816 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 1546 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 2918 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 2918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:55:39,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 1690 Invalid, 3325 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [407 Valid, 2918 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-21 16:55:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2022-11-21 16:55:39,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 584. [2022-11-21 16:55:39,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 459 states have (on average 1.618736383442266) internal successors, (743), 478 states have internal predecessors, (743), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:55:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 936 transitions. [2022-11-21 16:55:39,987 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 936 transitions. Word has length 117 [2022-11-21 16:55:39,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:55:39,988 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 936 transitions. [2022-11-21 16:55:39,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:39,988 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 936 transitions. [2022-11-21 16:55:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-21 16:55:39,991 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:55:39,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:39,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:55:39,992 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:55:39,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:39,992 INFO L85 PathProgramCache]: Analyzing trace with hash -325152449, now seen corresponding path program 1 times [2022-11-21 16:55:39,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:39,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379593545] [2022-11-21 16:55:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:39,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:55:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:55:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 16:55:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:55:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:55:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:55:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:55:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:40,629 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:55:40,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:40,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379593545] [2022-11-21 16:55:40,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379593545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:40,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:40,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:55:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335698801] [2022-11-21 16:55:40,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:40,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:55:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:55:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:55:40,632 INFO L87 Difference]: Start difference. First operand 584 states and 936 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:46,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:55:46,997 INFO L93 Difference]: Finished difference Result 1356 states and 2225 transitions. [2022-11-21 16:55:46,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 16:55:46,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2022-11-21 16:55:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:55:47,002 INFO L225 Difference]: With dead ends: 1356 [2022-11-21 16:55:47,002 INFO L226 Difference]: Without dead ends: 830 [2022-11-21 16:55:47,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-21 16:55:47,004 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 2036 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 3322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:55:47,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 1613 Invalid, 3322 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [574 Valid, 2748 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-21 16:55:47,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2022-11-21 16:55:47,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 584. [2022-11-21 16:55:47,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 459 states have (on average 1.607843137254902) internal successors, (738), 478 states have internal predecessors, (738), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:55:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 931 transitions. [2022-11-21 16:55:47,185 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 931 transitions. Word has length 117 [2022-11-21 16:55:47,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:55:47,185 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 931 transitions. [2022-11-21 16:55:47,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:47,186 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 931 transitions. [2022-11-21 16:55:47,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-21 16:55:47,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:55:47,190 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:47,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:55:47,191 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:55:47,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1990376799, now seen corresponding path program 1 times [2022-11-21 16:55:47,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:47,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469071366] [2022-11-21 16:55:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:47,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:55:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:55:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 16:55:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:55:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:55:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:55:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:55:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:47,805 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:55:47,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:47,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469071366] [2022-11-21 16:55:47,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469071366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:47,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:47,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:55:47,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849034941] [2022-11-21 16:55:47,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:47,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:55:47,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:47,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:55:47,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:55:47,809 INFO L87 Difference]: Start difference. First operand 584 states and 931 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:55,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:55:55,366 INFO L93 Difference]: Finished difference Result 1366 states and 2231 transitions. [2022-11-21 16:55:55,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:55:55,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-11-21 16:55:55,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:55:55,371 INFO L225 Difference]: With dead ends: 1366 [2022-11-21 16:55:55,371 INFO L226 Difference]: Without dead ends: 851 [2022-11-21 16:55:55,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:55:55,373 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1060 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 3220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:55:55,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1755 Invalid, 3220 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [248 Valid, 2972 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-21 16:55:55,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2022-11-21 16:55:55,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 588. [2022-11-21 16:55:55,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 463 states have (on average 1.6025917926565876) internal successors, (742), 482 states have internal predecessors, (742), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:55:55,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 935 transitions. [2022-11-21 16:55:55,558 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 935 transitions. Word has length 118 [2022-11-21 16:55:55,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:55:55,559 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 935 transitions. [2022-11-21 16:55:55,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:55:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 935 transitions. [2022-11-21 16:55:55,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-21 16:55:55,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:55:55,564 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:55:55,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:55:55,565 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:55:55,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:55,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1076158720, now seen corresponding path program 1 times [2022-11-21 16:55:55,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:55,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499941190] [2022-11-21 16:55:55,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:55,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:55:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:55,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:55:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:55,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:55:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 16:55:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:55:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:55:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:55:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:55:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:55:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:55:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:55:56,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:55:56,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:55:56,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499941190] [2022-11-21 16:55:56,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499941190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:55:56,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:55:56,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-21 16:55:56,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700292333] [2022-11-21 16:55:56,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:55:56,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 16:55:56,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:55:56,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 16:55:56,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:55:56,245 INFO L87 Difference]: Start difference. First operand 588 states and 935 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:56:05,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:56:05,182 INFO L93 Difference]: Finished difference Result 1372 states and 2239 transitions. [2022-11-21 16:56:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:56:05,183 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2022-11-21 16:56:05,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:56:05,190 INFO L225 Difference]: With dead ends: 1372 [2022-11-21 16:56:05,191 INFO L226 Difference]: Without dead ends: 860 [2022-11-21 16:56:05,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:56:05,195 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1069 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 5490 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 5739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 5490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:56:05,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 3073 Invalid, 5739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [249 Valid, 5490 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-21 16:56:05,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-11-21 16:56:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 599. [2022-11-21 16:56:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 471 states have (on average 1.5966029723991508) internal successors, (752), 492 states have internal predecessors, (752), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (97), 93 states have call predecessors, (97), 95 states have call successors, (97) [2022-11-21 16:56:05,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 949 transitions. [2022-11-21 16:56:05,388 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 949 transitions. Word has length 118 [2022-11-21 16:56:05,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:56:05,388 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 949 transitions. [2022-11-21 16:56:05,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:56:05,389 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 949 transitions. [2022-11-21 16:56:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-21 16:56:05,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:56:05,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:05,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:56:05,393 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:56:05,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:05,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1724896127, now seen corresponding path program 1 times [2022-11-21 16:56:05,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:05,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121153004] [2022-11-21 16:56:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:05,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:56:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:56:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 16:56:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:56:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:56:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:56:05,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:56:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:56:05,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:05,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121153004] [2022-11-21 16:56:05,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121153004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:05,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:05,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:56:05,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930941813] [2022-11-21 16:56:05,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:05,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:56:05,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:56:05,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:56:05,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:56:05,936 INFO L87 Difference]: Start difference. First operand 599 states and 949 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:56:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:56:12,680 INFO L93 Difference]: Finished difference Result 1429 states and 2307 transitions. [2022-11-21 16:56:12,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 16:56:12,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-11-21 16:56:12,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:56:12,685 INFO L225 Difference]: With dead ends: 1429 [2022-11-21 16:56:12,685 INFO L226 Difference]: Without dead ends: 828 [2022-11-21 16:56:12,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:56:12,688 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1920 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 2776 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 3337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 2776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:56:12,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 1637 Invalid, 3337 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [561 Valid, 2776 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-21 16:56:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-11-21 16:56:12,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 580. [2022-11-21 16:56:12,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 455 states have (on average 1.6043956043956045) internal successors, (730), 474 states have internal predecessors, (730), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:56:12,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 923 transitions. [2022-11-21 16:56:12,893 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 923 transitions. Word has length 118 [2022-11-21 16:56:12,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:56:12,893 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 923 transitions. [2022-11-21 16:56:12,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:56:12,894 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 923 transitions. [2022-11-21 16:56:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-21 16:56:12,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:56:12,898 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:12,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:56:12,899 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:56:12,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:12,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1532932511, now seen corresponding path program 1 times [2022-11-21 16:56:12,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:12,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415687083] [2022-11-21 16:56:12,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:12,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:56:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:56:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:56:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:56:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:56:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:56:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:56:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:56:13,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:13,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415687083] [2022-11-21 16:56:13,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415687083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:13,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:13,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:56:13,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597698698] [2022-11-21 16:56:13,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:13,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:56:13,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:56:13,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:56:13,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:56:13,516 INFO L87 Difference]: Start difference. First operand 580 states and 923 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:56:20,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:56:20,377 INFO L93 Difference]: Finished difference Result 1364 states and 2222 transitions. [2022-11-21 16:56:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:56:20,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2022-11-21 16:56:20,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:56:20,383 INFO L225 Difference]: With dead ends: 1364 [2022-11-21 16:56:20,383 INFO L226 Difference]: Without dead ends: 849 [2022-11-21 16:56:20,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-21 16:56:20,387 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1981 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-21 16:56:20,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 1619 Invalid, 3305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [572 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-21 16:56:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-11-21 16:56:20,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 585. [2022-11-21 16:56:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 460 states have (on average 1.5978260869565217) internal successors, (735), 479 states have internal predecessors, (735), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:56:20,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 928 transitions. [2022-11-21 16:56:20,602 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 928 transitions. Word has length 119 [2022-11-21 16:56:20,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:56:20,602 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 928 transitions. [2022-11-21 16:56:20,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:56:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 928 transitions. [2022-11-21 16:56:20,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-21 16:56:20,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:56:20,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:20,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:56:20,606 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:56:20,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1646774580, now seen corresponding path program 1 times [2022-11-21 16:56:20,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:20,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157950590] [2022-11-21 16:56:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:20,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:20,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:56:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:20,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:20,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:56:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:56:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:56:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:56:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:56:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:56:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:56:21,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:21,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157950590] [2022-11-21 16:56:21,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157950590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:21,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:21,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:56:21,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971951889] [2022-11-21 16:56:21,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:21,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:56:21,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:56:21,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:56:21,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:56:21,109 INFO L87 Difference]: Start difference. First operand 585 states and 928 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:56:28,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:56:28,432 INFO L93 Difference]: Finished difference Result 1362 states and 2217 transitions. [2022-11-21 16:56:28,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:56:28,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-11-21 16:56:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:56:28,437 INFO L225 Difference]: With dead ends: 1362 [2022-11-21 16:56:28,437 INFO L226 Difference]: Without dead ends: 826 [2022-11-21 16:56:28,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:56:28,439 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 1489 mSDsluCounter, 1231 mSDsCounter, 0 mSdLazyCounter, 2852 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 2852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:56:28,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 1673 Invalid, 3262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [410 Valid, 2852 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-11-21 16:56:28,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-11-21 16:56:28,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 585. [2022-11-21 16:56:28,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 460 states have (on average 1.5891304347826087) internal successors, (731), 479 states have internal predecessors, (731), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2022-11-21 16:56:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 924 transitions. [2022-11-21 16:56:28,632 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 924 transitions. Word has length 120 [2022-11-21 16:56:28,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:56:28,633 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 924 transitions. [2022-11-21 16:56:28,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:56:28,633 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 924 transitions. [2022-11-21 16:56:28,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-21 16:56:28,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:56:28,636 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:28,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:56:28,637 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:56:28,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:28,637 INFO L85 PathProgramCache]: Analyzing trace with hash -230288650, now seen corresponding path program 1 times [2022-11-21 16:56:28,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:28,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793376492] [2022-11-21 16:56:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:28,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:56:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:28,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:56:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:56:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:56:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:56:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:56:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:56:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:56:29,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:29,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793376492] [2022-11-21 16:56:29,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793376492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:29,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:29,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:56:29,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040063281] [2022-11-21 16:56:29,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:29,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 16:56:29,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:56:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 16:56:29,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:56:29,218 INFO L87 Difference]: Start difference. First operand 585 states and 924 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:56:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:56:41,444 INFO L93 Difference]: Finished difference Result 1995 states and 3335 transitions. [2022-11-21 16:56:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:56:41,445 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2022-11-21 16:56:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:56:41,456 INFO L225 Difference]: With dead ends: 1995 [2022-11-21 16:56:41,456 INFO L226 Difference]: Without dead ends: 1488 [2022-11-21 16:56:41,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:56:41,460 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 3662 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 1713 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3674 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 4748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1713 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:56:41,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3674 Valid, 1470 Invalid, 4748 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1713 Valid, 3035 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-11-21 16:56:41,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-11-21 16:56:41,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1109. [2022-11-21 16:56:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 872 states have (on average 1.6307339449541285) internal successors, (1422), 904 states have internal predecessors, (1422), 188 states have call successors, (188), 46 states have call predecessors, (188), 48 states have return successors, (192), 182 states have call predecessors, (192), 183 states have call successors, (192) [2022-11-21 16:56:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1802 transitions. [2022-11-21 16:56:41,888 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1802 transitions. Word has length 120 [2022-11-21 16:56:41,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:56:41,889 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 1802 transitions. [2022-11-21 16:56:41,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:56:41,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1802 transitions. [2022-11-21 16:56:41,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-21 16:56:41,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:56:41,892 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:41,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:56:41,893 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:56:41,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:41,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1155914744, now seen corresponding path program 1 times [2022-11-21 16:56:41,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:41,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568232723] [2022-11-21 16:56:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:41,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:56:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:56:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:56:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:56:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:56:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:56:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:56:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-21 16:56:42,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:42,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568232723] [2022-11-21 16:56:42,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568232723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:42,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:42,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:56:42,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462634255] [2022-11-21 16:56:42,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:42,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:56:42,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:56:42,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:56:42,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:56:42,538 INFO L87 Difference]: Start difference. First operand 1109 states and 1802 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:56:50,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:56:50,963 INFO L93 Difference]: Finished difference Result 2527 states and 4239 transitions. [2022-11-21 16:56:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-21 16:56:50,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-11-21 16:56:50,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:56:50,974 INFO L225 Difference]: With dead ends: 2527 [2022-11-21 16:56:50,974 INFO L226 Difference]: Without dead ends: 1496 [2022-11-21 16:56:50,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2022-11-21 16:56:50,980 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 2800 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 3609 mSolverCounterSat, 966 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 4575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 966 IncrementalHoareTripleChecker+Valid, 3609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:56:50,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 1938 Invalid, 4575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [966 Valid, 3609 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-21 16:56:50,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-11-21 16:56:51,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1121. [2022-11-21 16:56:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 882 states have (on average 1.6235827664399094) internal successors, (1432), 912 states have internal predecessors, (1432), 188 states have call successors, (188), 46 states have call predecessors, (188), 50 states have return successors, (198), 186 states have call predecessors, (198), 183 states have call successors, (198) [2022-11-21 16:56:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1818 transitions. [2022-11-21 16:56:51,400 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1818 transitions. Word has length 120 [2022-11-21 16:56:51,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:56:51,401 INFO L495 AbstractCegarLoop]: Abstraction has 1121 states and 1818 transitions. [2022-11-21 16:56:51,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-21 16:56:51,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1818 transitions. [2022-11-21 16:56:51,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-21 16:56:51,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:56:51,404 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:56:51,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:56:51,405 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:56:51,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:56:51,405 INFO L85 PathProgramCache]: Analyzing trace with hash 35752149, now seen corresponding path program 1 times [2022-11-21 16:56:51,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:56:51,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144802732] [2022-11-21 16:56:51,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:56:51,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:56:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:56:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:56:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:56:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:51,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-21 16:56:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:52,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:56:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-21 16:56:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:52,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-21 16:56:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:52,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:56:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 16:56:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:56:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:56:52,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:56:52,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144802732] [2022-11-21 16:56:52,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144802732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:56:52,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:56:52,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:56:52,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041535858] [2022-11-21 16:56:52,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:56:52,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:56:52,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:56:52,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:56:52,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:56:52,123 INFO L87 Difference]: Start difference. First operand 1121 states and 1818 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 16:57:01,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:01,054 INFO L93 Difference]: Finished difference Result 2529 states and 4289 transitions. [2022-11-21 16:57:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:57:01,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 122 [2022-11-21 16:57:01,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:01,064 INFO L225 Difference]: With dead ends: 2529 [2022-11-21 16:57:01,064 INFO L226 Difference]: Without dead ends: 1486 [2022-11-21 16:57:01,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:57:01,071 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 1810 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 3913 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 4565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 3913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:01,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 1997 Invalid, 4565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [652 Valid, 3913 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-21 16:57:01,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2022-11-21 16:57:01,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1129. [2022-11-21 16:57:01,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 888 states have (on average 1.6193693693693694) internal successors, (1438), 918 states have internal predecessors, (1438), 188 states have call successors, (188), 48 states have call predecessors, (188), 52 states have return successors, (200), 186 states have call predecessors, (200), 183 states have call successors, (200) [2022-11-21 16:57:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1826 transitions. [2022-11-21 16:57:01,588 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1826 transitions. Word has length 122 [2022-11-21 16:57:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:01,589 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1826 transitions. [2022-11-21 16:57:01,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 16:57:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1826 transitions. [2022-11-21 16:57:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-21 16:57:01,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:01,593 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:01,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:57:01,593 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:01,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:01,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1869032713, now seen corresponding path program 1 times [2022-11-21 16:57:01,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:01,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026724639] [2022-11-21 16:57:01,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:01,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:01,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:57:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:01,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:57:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:57:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:57:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 16:57:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:57:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-21 16:57:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 16:57:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 16:57:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:02,343 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:57:02,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:02,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026724639] [2022-11-21 16:57:02,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026724639] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:02,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:02,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:57:02,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344594525] [2022-11-21 16:57:02,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:02,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:57:02,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:02,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:57:02,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:57:02,348 INFO L87 Difference]: Start difference. First operand 1129 states and 1826 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 16:57:11,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:11,579 INFO L93 Difference]: Finished difference Result 2547 states and 4299 transitions. [2022-11-21 16:57:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:57:11,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2022-11-21 16:57:11,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:11,588 INFO L225 Difference]: With dead ends: 2547 [2022-11-21 16:57:11,588 INFO L226 Difference]: Without dead ends: 1496 [2022-11-21 16:57:11,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:57:11,593 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 2264 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 3840 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 4636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 3840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:11,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 1974 Invalid, 4636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [796 Valid, 3840 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-11-21 16:57:11,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2022-11-21 16:57:12,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1139. [2022-11-21 16:57:12,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 896 states have (on average 1.6138392857142858) internal successors, (1446), 926 states have internal predecessors, (1446), 188 states have call successors, (188), 50 states have call predecessors, (188), 54 states have return successors, (202), 186 states have call predecessors, (202), 183 states have call successors, (202) [2022-11-21 16:57:12,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1836 transitions. [2022-11-21 16:57:12,271 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1836 transitions. Word has length 124 [2022-11-21 16:57:12,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:12,271 INFO L495 AbstractCegarLoop]: Abstraction has 1139 states and 1836 transitions. [2022-11-21 16:57:12,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 16:57:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1836 transitions. [2022-11-21 16:57:12,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-21 16:57:12,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:12,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:12,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:57:12,277 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:12,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:12,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1407304747, now seen corresponding path program 1 times [2022-11-21 16:57:12,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:12,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500140002] [2022-11-21 16:57:12,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:12,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:57:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:57:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:12,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:57:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-21 16:57:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 16:57:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-21 16:57:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 16:57:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-21 16:57:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-21 16:57:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:57:13,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:13,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500140002] [2022-11-21 16:57:13,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500140002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:13,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:13,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:57:13,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982183328] [2022-11-21 16:57:13,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:13,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:57:13,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:13,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:57:13,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:57:13,154 INFO L87 Difference]: Start difference. First operand 1139 states and 1836 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 16:57:22,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:22,383 INFO L93 Difference]: Finished difference Result 2569 states and 4313 transitions. [2022-11-21 16:57:22,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:57:22,384 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 126 [2022-11-21 16:57:22,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:22,396 INFO L225 Difference]: With dead ends: 2569 [2022-11-21 16:57:22,396 INFO L226 Difference]: Without dead ends: 1508 [2022-11-21 16:57:22,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:57:22,403 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 2277 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 3747 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2287 SdHoareTripleChecker+Valid, 1937 SdHoareTripleChecker+Invalid, 4547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 3747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:22,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2287 Valid, 1937 Invalid, 4547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [800 Valid, 3747 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-21 16:57:22,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-11-21 16:57:23,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1151. [2022-11-21 16:57:23,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 906 states have (on average 1.6070640176600441) internal successors, (1456), 936 states have internal predecessors, (1456), 188 states have call successors, (188), 52 states have call predecessors, (188), 56 states have return successors, (204), 186 states have call predecessors, (204), 183 states have call successors, (204) [2022-11-21 16:57:23,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1848 transitions. [2022-11-21 16:57:23,064 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1848 transitions. Word has length 126 [2022-11-21 16:57:23,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:23,065 INFO L495 AbstractCegarLoop]: Abstraction has 1151 states and 1848 transitions. [2022-11-21 16:57:23,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 16:57:23,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1848 transitions. [2022-11-21 16:57:23,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-21 16:57:23,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:23,069 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:23,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-21 16:57:23,069 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:23,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:23,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2047357311, now seen corresponding path program 1 times [2022-11-21 16:57:23,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:23,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325559838] [2022-11-21 16:57:23,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:23,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:57:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:57:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:57:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:57:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 16:57:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-21 16:57:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-21 16:57:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 16:57:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 16:57:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 16:57:23,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:23,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325559838] [2022-11-21 16:57:23,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325559838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:23,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:57:23,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 16:57:23,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453222511] [2022-11-21 16:57:23,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:23,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:57:23,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:23,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:57:23,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:57:23,811 INFO L87 Difference]: Start difference. First operand 1151 states and 1848 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 16:57:32,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:32,361 INFO L93 Difference]: Finished difference Result 2595 states and 4331 transitions. [2022-11-21 16:57:32,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:57:32,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 128 [2022-11-21 16:57:32,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:32,369 INFO L225 Difference]: With dead ends: 2595 [2022-11-21 16:57:32,369 INFO L226 Difference]: Without dead ends: 1522 [2022-11-21 16:57:32,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-21 16:57:32,376 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 2719 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 3710 mSolverCounterSat, 940 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 4650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 940 IncrementalHoareTripleChecker+Valid, 3710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:32,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2729 Valid, 1925 Invalid, 4650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [940 Valid, 3710 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-21 16:57:32,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-11-21 16:57:32,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1165. [2022-11-21 16:57:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 918 states have (on average 1.5991285403050108) internal successors, (1468), 948 states have internal predecessors, (1468), 188 states have call successors, (188), 54 states have call predecessors, (188), 58 states have return successors, (206), 186 states have call predecessors, (206), 183 states have call successors, (206) [2022-11-21 16:57:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1862 transitions. [2022-11-21 16:57:32,780 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1862 transitions. Word has length 128 [2022-11-21 16:57:32,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:32,781 INFO L495 AbstractCegarLoop]: Abstraction has 1165 states and 1862 transitions. [2022-11-21 16:57:32,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-21 16:57:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1862 transitions. [2022-11-21 16:57:32,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-21 16:57:32,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:32,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:32,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-21 16:57:32,784 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:32,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1040182485, now seen corresponding path program 1 times [2022-11-21 16:57:32,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:32,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123882023] [2022-11-21 16:57:32,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:32,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:57:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:57:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:57:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:57:33,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:57:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:57:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:57:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:57:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:57:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:33,922 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-21 16:57:33,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:33,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123882023] [2022-11-21 16:57:33,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123882023] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:57:33,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500877222] [2022-11-21 16:57:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:33,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:57:33,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:57:33,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:57:33,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 16:57:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:34,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1469 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:57:34,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:34,685 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:57:34,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:34,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500877222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:34,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:57:34,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-11-21 16:57:34,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527266654] [2022-11-21 16:57:34,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:34,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:57:34,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:34,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:57:34,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:57:34,688 INFO L87 Difference]: Start difference. First operand 1165 states and 1862 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:57:40,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:40,344 INFO L93 Difference]: Finished difference Result 3785 states and 6291 transitions. [2022-11-21 16:57:40,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:57:40,345 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 130 [2022-11-21 16:57:40,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:40,368 INFO L225 Difference]: With dead ends: 3785 [2022-11-21 16:57:40,369 INFO L226 Difference]: Without dead ends: 2698 [2022-11-21 16:57:40,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:57:40,378 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 2328 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 3706 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 4231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 3706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:40,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 1777 Invalid, 4231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 3706 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-21 16:57:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2022-11-21 16:57:41,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2406. [2022-11-21 16:57:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 1859 states have (on average 1.6078536847767617) internal successors, (2989), 1927 states have internal predecessors, (2989), 428 states have call successors, (428), 103 states have call predecessors, (428), 118 states have return successors, (514), 433 states have call predecessors, (514), 423 states have call successors, (514) [2022-11-21 16:57:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3931 transitions. [2022-11-21 16:57:41,427 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3931 transitions. Word has length 130 [2022-11-21 16:57:41,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:41,428 INFO L495 AbstractCegarLoop]: Abstraction has 2406 states and 3931 transitions. [2022-11-21 16:57:41,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:57:41,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3931 transitions. [2022-11-21 16:57:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-21 16:57:41,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:41,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:41,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:57:41,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-21 16:57:41,631 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:41,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:41,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1153376469, now seen corresponding path program 1 times [2022-11-21 16:57:41,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:41,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184024210] [2022-11-21 16:57:41,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:41,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:57:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:57:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:57:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:57:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:57:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:57:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:57:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:57:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:57:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-21 16:57:42,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:42,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184024210] [2022-11-21 16:57:42,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184024210] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:57:42,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697647566] [2022-11-21 16:57:42,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:42,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:57:42,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:57:42,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:57:42,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 16:57:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:42,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:57:42,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:57:43,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:43,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697647566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:43,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:57:43,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-11-21 16:57:43,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134338797] [2022-11-21 16:57:43,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:43,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:57:43,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:43,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:57:43,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:57:43,275 INFO L87 Difference]: Start difference. First operand 2406 states and 3931 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:57:50,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:57:50,008 INFO L93 Difference]: Finished difference Result 8221 states and 14010 transitions. [2022-11-21 16:57:50,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:57:50,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2022-11-21 16:57:50,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:57:50,051 INFO L225 Difference]: With dead ends: 8221 [2022-11-21 16:57:50,052 INFO L226 Difference]: Without dead ends: 5893 [2022-11-21 16:57:50,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:57:50,063 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 2328 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 3683 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 1765 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 3683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:57:50,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 1765 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 3683 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-21 16:57:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2022-11-21 16:57:52,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5166. [2022-11-21 16:57:52,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 3909 states have (on average 1.6068048094141725) internal successors, (6281), 4069 states have internal predecessors, (6281), 1012 states have call successors, (1012), 201 states have call predecessors, (1012), 244 states have return successors, (1306), 1039 states have call predecessors, (1306), 1007 states have call successors, (1306) [2022-11-21 16:57:52,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 8599 transitions. [2022-11-21 16:57:52,906 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 8599 transitions. Word has length 131 [2022-11-21 16:57:52,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:57:52,907 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 8599 transitions. [2022-11-21 16:57:52,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:57:52,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 8599 transitions. [2022-11-21 16:57:52,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-21 16:57:52,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:57:52,909 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:57:52,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:57:53,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-21 16:57:53,117 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:57:53,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:57:53,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2069524207, now seen corresponding path program 1 times [2022-11-21 16:57:53,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:57:53,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486893097] [2022-11-21 16:57:53,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:53,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:57:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:57:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:57:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:57:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:57:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:57:54,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:57:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:57:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:57:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:57:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:57:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:54,603 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-21 16:57:54,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:57:54,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486893097] [2022-11-21 16:57:54,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486893097] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:57:54,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557355834] [2022-11-21 16:57:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:57:54,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:57:54,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:57:54,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:57:54,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 16:57:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:57:55,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:57:55,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:57:55,303 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:57:55,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:57:55,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557355834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:57:55,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:57:55,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-11-21 16:57:55,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436606887] [2022-11-21 16:57:55,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:57:55,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:57:55,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:57:55,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:57:55,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:57:55,307 INFO L87 Difference]: Start difference. First operand 5166 states and 8599 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:58:07,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:58:07,634 INFO L93 Difference]: Finished difference Result 18431 states and 32288 transitions. [2022-11-21 16:58:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:58:07,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 132 [2022-11-21 16:58:07,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:58:07,741 INFO L225 Difference]: With dead ends: 18431 [2022-11-21 16:58:07,741 INFO L226 Difference]: Without dead ends: 13343 [2022-11-21 16:58:07,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:58:07,793 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 2336 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-21 16:58:07,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2475 Valid, 1738 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-21 16:58:07,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13343 states. [2022-11-21 16:58:15,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13343 to 11478. [2022-11-21 16:58:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11478 states, 8495 states have (on average 1.6005885815185403) internal successors, (13597), 8881 states have internal predecessors, (13597), 2470 states have call successors, (2470), 397 states have call predecessors, (2470), 512 states have return successors, (3444), 2565 states have call predecessors, (3444), 2465 states have call successors, (3444) [2022-11-21 16:58:15,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11478 states to 11478 states and 19511 transitions. [2022-11-21 16:58:15,233 INFO L78 Accepts]: Start accepts. Automaton has 11478 states and 19511 transitions. Word has length 132 [2022-11-21 16:58:15,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:58:15,233 INFO L495 AbstractCegarLoop]: Abstraction has 11478 states and 19511 transitions. [2022-11-21 16:58:15,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:58:15,234 INFO L276 IsEmpty]: Start isEmpty. Operand 11478 states and 19511 transitions. [2022-11-21 16:58:15,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-21 16:58:15,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:58:15,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:58:15,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 16:58:15,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-21 16:58:15,446 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:58:15,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:58:15,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2040629913, now seen corresponding path program 1 times [2022-11-21 16:58:15,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:58:15,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733203345] [2022-11-21 16:58:15,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:15,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:58:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:15,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:58:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:58:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:15,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-21 16:58:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 16:58:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:58:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:58:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:58:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:58:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:58:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:58:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 16:58:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 16:58:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 16:58:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 16:58:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 16:58:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-21 16:58:16,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:58:16,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733203345] [2022-11-21 16:58:16,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733203345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 16:58:16,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686678991] [2022-11-21 16:58:16,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:58:16,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 16:58:16,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:58:16,714 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 16:58:16,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c17f328-4323-4f6b-8576-ba185cc3a458/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 16:58:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:58:17,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:58:17,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:58:17,357 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-21 16:58:17,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:58:17,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686678991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:58:17,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 16:58:17,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-11-21 16:58:17,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107277791] [2022-11-21 16:58:17,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:58:17,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:58:17,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:58:17,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:58:17,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-21 16:58:17,360 INFO L87 Difference]: Start difference. First operand 11478 states and 19511 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 16:58:42,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:58:42,997 INFO L93 Difference]: Finished difference Result 42675 states and 77726 transitions. [2022-11-21 16:58:42,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:58:42,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2022-11-21 16:58:42,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:58:43,403 INFO L225 Difference]: With dead ends: 42675 [2022-11-21 16:58:43,404 INFO L226 Difference]: Without dead ends: 31275 [2022-11-21 16:58:43,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2022-11-21 16:58:43,602 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 2918 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 711 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 4278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 711 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-21 16:58:43,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3057 Valid, 1606 Invalid, 4278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [711 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-21 16:58:43,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31275 states.