./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS --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 d88f56b65c964ba52afb6589890f47808246433fd1cd2f6e6c97070f65703887 --- 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-4e7fbc6 [2022-11-23 03:58:41,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:58:41,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:58:41,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:58:41,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:58:41,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:58:41,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:58:41,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:58:41,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:58:41,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:58:41,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:58:41,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:58:41,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:58:41,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:58:41,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:58:41,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:58:41,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:58:41,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:58:41,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:58:41,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:58:41,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:58:41,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:58:41,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:58:41,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:58:41,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:58:41,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:58:41,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:58:41,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:58:41,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:58:41,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:58:41,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:58:41,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:58:41,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:58:41,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:58:41,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:58:41,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:58:41,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:58:41,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:58:41,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:58:41,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:58:41,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:58:41,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 03:58:41,414 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:58:41,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:58:41,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:58:41,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:58:41,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:58:41,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:58:41,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:58:41,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:58:41,422 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:58:41,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:58:41,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:58:41,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:58:41,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:58:41,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:58:41,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:58:41,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:58:41,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:58:41,425 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:58:41,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:58:41,426 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:58:41,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:58:41,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:58:41,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:58:41,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:58:41,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:58:41,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:58:41,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:58:41,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:58:41,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:58:41,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:58:41,430 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:58:41,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:58:41,430 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:58:41,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:58:41,431 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d88f56b65c964ba52afb6589890f47808246433fd1cd2f6e6c97070f65703887 [2022-11-23 03:58:41,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:58:41,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:58:41,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:58:41,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:58:41,796 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:58:41,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2022-11-23 03:58:45,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:58:45,662 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:58:45,663 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2022-11-23 03:58:45,697 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/data/aabc70831/e473d9dfeb044ea4a84e0843223ac592/FLAG33c6b4e74 [2022-11-23 03:58:45,719 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/data/aabc70831/e473d9dfeb044ea4a84e0843223ac592 [2022-11-23 03:58:45,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:58:45,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:58:45,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:45,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:58:45,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:58:45,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:45" (1/1) ... [2022-11-23 03:58:45,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2ce8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:45, skipping insertion in model container [2022-11-23 03:58:45,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:45" (1/1) ... [2022-11-23 03:58:45,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:58:45,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:58:46,532 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_2da7ac94-ff25-4fec-a86b-dcc2b879183b/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[15584,15597] [2022-11-23 03:58:46,623 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_2da7ac94-ff25-4fec-a86b-dcc2b879183b/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[22645,22658] [2022-11-23 03:58:47,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:47,759 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:58:47,820 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_2da7ac94-ff25-4fec-a86b-dcc2b879183b/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[15584,15597] [2022-11-23 03:58:47,833 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_2da7ac94-ff25-4fec-a86b-dcc2b879183b/sv-benchmarks/c/combinations/pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c[22645,22658] [2022-11-23 03:58:48,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:48,597 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:58:48,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48 WrapperNode [2022-11-23 03:58:48,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:48,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:48,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:58:48,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:58:48,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:48,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,266 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5121 [2022-11-23 03:58:49,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:49,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:58:49,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:58:49,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:58:49,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,560 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:58:49,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:58:49,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:58:49,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:58:49,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (1/1) ... [2022-11-23 03:58:49,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:58:49,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:49,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:49,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2da7ac94-ff25-4fec-a86b-dcc2b879183b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:58:49,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:58:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:58:49,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:58:49,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:58:50,010 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:58:50,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:58:56,571 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:58:56,592 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:58:56,592 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:58:56,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:56 BoogieIcfgContainer [2022-11-23 03:58:56,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:58:56,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:58:56,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:58:56,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:58:56,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:58:45" (1/3) ... [2022-11-23 03:58:56,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eceef39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:56, skipping insertion in model container [2022-11-23 03:58:56,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:48" (2/3) ... [2022-11-23 03:58:56,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eceef39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:56, skipping insertion in model container [2022-11-23 03:58:56,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:56" (3/3) ... [2022-11-23 03:58:56,615 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6_overflow.ufo.UNBOUNDED.pals+Problem12_label04.c [2022-11-23 03:58:56,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:58:56,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:58:56,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:58:56,781 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;@285fa468, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:58:56,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:58:56,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 914 states, 911 states have (on average 1.9045005488474205) internal successors, (1735), 913 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:56,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 03:58:56,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:58:56,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:56,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:58:56,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:56,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1509915646, now seen corresponding path program 1 times [2022-11-23 03:58:56,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:56,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313456478] [2022-11-23 03:58:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:56,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:57,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:57,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313456478] [2022-11-23 03:58:57,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313456478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:57,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:57,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:58:57,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051462165] [2022-11-23 03:58:57,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:57,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:58:57,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:57,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:58:57,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:58:57,245 INFO L87 Difference]: Start difference. First operand has 914 states, 911 states have (on average 1.9045005488474205) internal successors, (1735), 913 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:57,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:57,384 INFO L93 Difference]: Finished difference Result 1780 states and 3380 transitions. [2022-11-23 03:58:57,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:58:57,387 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-23 03:58:57,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:58:57,419 INFO L225 Difference]: With dead ends: 1780 [2022-11-23 03:58:57,420 INFO L226 Difference]: Without dead ends: 848 [2022-11-23 03:58:57,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:58:57,437 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:58:57,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:58:57,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-11-23 03:58:57,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2022-11-23 03:58:57,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 846 states have (on average 1.8936170212765957) internal successors, (1602), 847 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:57,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1602 transitions. [2022-11-23 03:58:57,572 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1602 transitions. Word has length 26 [2022-11-23 03:58:57,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:58:57,573 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1602 transitions. [2022-11-23 03:58:57,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1602 transitions. [2022-11-23 03:58:57,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 03:58:57,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:58:57,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:57,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:58:57,577 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:58:57,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:57,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1967403200, now seen corresponding path program 1 times [2022-11-23 03:58:57,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:57,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447147404] [2022-11-23 03:58:57,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:57,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:57,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:57,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447147404] [2022-11-23 03:58:57,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447147404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:57,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:57,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:58:57,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619532908] [2022-11-23 03:58:57,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:57,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:58:57,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:57,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:58:57,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:58:57,963 INFO L87 Difference]: Start difference. First operand 848 states and 1602 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:58:58,132 INFO L93 Difference]: Finished difference Result 900 states and 1683 transitions. [2022-11-23 03:58:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:58:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-23 03:58:58,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:58:58,138 INFO L225 Difference]: With dead ends: 900 [2022-11-23 03:58:58,138 INFO L226 Difference]: Without dead ends: 848 [2022-11-23 03:58:58,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:58:58,142 INFO L413 NwaCegarLoop]: 1600 mSDtfsCounter, 3 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6357 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:58:58,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6357 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:58:58,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2022-11-23 03:58:58,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 848. [2022-11-23 03:58:58,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 846 states have (on average 1.846335697399527) internal successors, (1562), 847 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:58,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1562 transitions. [2022-11-23 03:58:58,179 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1562 transitions. Word has length 26 [2022-11-23 03:58:58,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:58:58,179 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 1562 transitions. [2022-11-23 03:58:58,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:58:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1562 transitions. [2022-11-23 03:58:58,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 03:58:58,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:58:58,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:58,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:58:58,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:58:58,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:58,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2076163982, now seen corresponding path program 1 times [2022-11-23 03:58:58,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:58,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671972642] [2022-11-23 03:58:58,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:58,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:58:58,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:58:58,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:58:58,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671972642] [2022-11-23 03:58:58,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671972642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:58:58,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:58:58,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:58:58,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365050883] [2022-11-23 03:58:58,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:58:58,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:58:58,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:58:58,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:58:58,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:58:58,465 INFO L87 Difference]: Start difference. First operand 848 states and 1562 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:03,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:03,967 INFO L93 Difference]: Finished difference Result 2352 states and 4435 transitions. [2022-11-23 03:59:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:59:03,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-23 03:59:03,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:03,976 INFO L225 Difference]: With dead ends: 2352 [2022-11-23 03:59:03,976 INFO L226 Difference]: Without dead ends: 1599 [2022-11-23 03:59:03,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:03,979 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 863 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:03,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 598 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-23 03:59:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2022-11-23 03:59:04,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1599. [2022-11-23 03:59:04,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1597 states have (on average 1.591108328115216) internal successors, (2541), 1598 states have internal predecessors, (2541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 2541 transitions. [2022-11-23 03:59:04,031 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 2541 transitions. Word has length 61 [2022-11-23 03:59:04,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:04,032 INFO L495 AbstractCegarLoop]: Abstraction has 1599 states and 2541 transitions. [2022-11-23 03:59:04,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:04,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 2541 transitions. [2022-11-23 03:59:04,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 03:59:04,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:04,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:04,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:59:04,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:04,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:04,036 INFO L85 PathProgramCache]: Analyzing trace with hash 223622668, now seen corresponding path program 1 times [2022-11-23 03:59:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:04,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208950507] [2022-11-23 03:59:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:04,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:04,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:04,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208950507] [2022-11-23 03:59:04,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208950507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:04,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:04,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 03:59:04,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084882480] [2022-11-23 03:59:04,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:04,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:59:04,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:04,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:59:04,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:59:04,338 INFO L87 Difference]: Start difference. First operand 1599 states and 2541 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:04,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:04,801 INFO L93 Difference]: Finished difference Result 2175 states and 3465 transitions. [2022-11-23 03:59:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:59:04,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2022-11-23 03:59:04,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:04,811 INFO L225 Difference]: With dead ends: 2175 [2022-11-23 03:59:04,812 INFO L226 Difference]: Without dead ends: 2127 [2022-11-23 03:59:04,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:59:04,825 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 9699 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9699 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:04,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9699 Valid, 3692 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:59:04,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2127 states. [2022-11-23 03:59:04,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2127 to 1645. [2022-11-23 03:59:04,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1643 states have (on average 1.591600730371272) internal successors, (2615), 1644 states have internal predecessors, (2615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:04,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2615 transitions. [2022-11-23 03:59:04,887 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2615 transitions. Word has length 65 [2022-11-23 03:59:04,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:04,890 INFO L495 AbstractCegarLoop]: Abstraction has 1645 states and 2615 transitions. [2022-11-23 03:59:04,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2615 transitions. [2022-11-23 03:59:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 03:59:04,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:04,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:04,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:59:04,894 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:04,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1262675076, now seen corresponding path program 1 times [2022-11-23 03:59:04,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:04,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409533838] [2022-11-23 03:59:04,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:04,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:05,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:05,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:05,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409533838] [2022-11-23 03:59:05,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409533838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:05,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:05,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:59:05,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996791695] [2022-11-23 03:59:05,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:05,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:59:05,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:05,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:59:05,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:05,070 INFO L87 Difference]: Start difference. First operand 1645 states and 2615 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:05,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:05,142 INFO L93 Difference]: Finished difference Result 1822 states and 2898 transitions. [2022-11-23 03:59:05,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:59:05,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-23 03:59:05,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:05,151 INFO L225 Difference]: With dead ends: 1822 [2022-11-23 03:59:05,152 INFO L226 Difference]: Without dead ends: 1728 [2022-11-23 03:59:05,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:05,154 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 1490 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:05,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1632 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:59:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2022-11-23 03:59:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2022-11-23 03:59:05,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.5910672853828307) internal successors, (2743), 1725 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:05,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2743 transitions. [2022-11-23 03:59:05,218 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2743 transitions. Word has length 67 [2022-11-23 03:59:05,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:05,219 INFO L495 AbstractCegarLoop]: Abstraction has 1726 states and 2743 transitions. [2022-11-23 03:59:05,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:05,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2743 transitions. [2022-11-23 03:59:05,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 03:59:05,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:05,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:05,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:59:05,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:05,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1196181564, now seen corresponding path program 1 times [2022-11-23 03:59:05,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:05,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435026983] [2022-11-23 03:59:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:05,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:05,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:05,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:05,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435026983] [2022-11-23 03:59:05,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435026983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:05,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:05,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 03:59:05,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933456335] [2022-11-23 03:59:05,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:05,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:59:05,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:05,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:59:05,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:59:05,713 INFO L87 Difference]: Start difference. First operand 1726 states and 2743 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:06,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:06,194 INFO L93 Difference]: Finished difference Result 1903 states and 3023 transitions. [2022-11-23 03:59:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:59:06,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-23 03:59:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:06,203 INFO L225 Difference]: With dead ends: 1903 [2022-11-23 03:59:06,203 INFO L226 Difference]: Without dead ends: 1728 [2022-11-23 03:59:06,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:59:06,206 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 7685 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7685 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:06,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7685 Valid, 1922 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:59:06,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2022-11-23 03:59:06,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1726. [2022-11-23 03:59:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1724 states have (on average 1.589907192575406) internal successors, (2741), 1725 states have internal predecessors, (2741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2741 transitions. [2022-11-23 03:59:06,275 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2741 transitions. Word has length 67 [2022-11-23 03:59:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:06,275 INFO L495 AbstractCegarLoop]: Abstraction has 1726 states and 2741 transitions. [2022-11-23 03:59:06,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:06,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2741 transitions. [2022-11-23 03:59:06,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 03:59:06,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:06,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:06,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:59:06,278 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:06,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1158354181, now seen corresponding path program 1 times [2022-11-23 03:59:06,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:06,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434775595] [2022-11-23 03:59:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:06,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:06,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:06,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434775595] [2022-11-23 03:59:06,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434775595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:06,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:06,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:59:06,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483714145] [2022-11-23 03:59:06,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:06,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:59:06,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:06,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:59:06,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:59:06,557 INFO L87 Difference]: Start difference. First operand 1726 states and 2741 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:06,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:06,716 INFO L93 Difference]: Finished difference Result 1898 states and 3008 transitions. [2022-11-23 03:59:06,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:59:06,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-11-23 03:59:06,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:06,726 INFO L225 Difference]: With dead ends: 1898 [2022-11-23 03:59:06,726 INFO L226 Difference]: Without dead ends: 1896 [2022-11-23 03:59:06,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:59:06,729 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 202 mSDsluCounter, 4688 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:06,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 6318 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:59:06,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2022-11-23 03:59:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1732. [2022-11-23 03:59:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1730 states have (on average 1.5872832369942196) internal successors, (2746), 1731 states have internal predecessors, (2746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2746 transitions. [2022-11-23 03:59:06,804 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2746 transitions. Word has length 68 [2022-11-23 03:59:06,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:06,804 INFO L495 AbstractCegarLoop]: Abstraction has 1732 states and 2746 transitions. [2022-11-23 03:59:06,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2746 transitions. [2022-11-23 03:59:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 03:59:06,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:06,806 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:06,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:59:06,807 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:06,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:06,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1759773380, now seen corresponding path program 1 times [2022-11-23 03:59:06,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:06,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691340062] [2022-11-23 03:59:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:06,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:06,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:06,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691340062] [2022-11-23 03:59:06,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691340062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:06,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:06,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:59:06,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24127698] [2022-11-23 03:59:06,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:06,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:59:06,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:59:06,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:06,925 INFO L87 Difference]: Start difference. First operand 1732 states and 2746 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:07,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:07,009 INFO L93 Difference]: Finished difference Result 1926 states and 3047 transitions. [2022-11-23 03:59:07,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:59:07,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-23 03:59:07,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:07,018 INFO L225 Difference]: With dead ends: 1926 [2022-11-23 03:59:07,018 INFO L226 Difference]: Without dead ends: 1826 [2022-11-23 03:59:07,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:07,025 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1506 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:07,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1702 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:59:07,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2022-11-23 03:59:07,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1824. [2022-11-23 03:59:07,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1824 states, 1822 states have (on average 1.5845225027442371) internal successors, (2887), 1823 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2887 transitions. [2022-11-23 03:59:07,122 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2887 transitions. Word has length 69 [2022-11-23 03:59:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:07,122 INFO L495 AbstractCegarLoop]: Abstraction has 1824 states and 2887 transitions. [2022-11-23 03:59:07,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:07,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2887 transitions. [2022-11-23 03:59:07,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 03:59:07,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:07,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:07,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:59:07,132 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:07,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:07,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1922687940, now seen corresponding path program 1 times [2022-11-23 03:59:07,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:07,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240517625] [2022-11-23 03:59:07,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:07,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:07,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:07,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:07,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240517625] [2022-11-23 03:59:07,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240517625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:07,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:07,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:59:07,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779392112] [2022-11-23 03:59:07,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:07,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:59:07,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:07,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:59:07,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:07,216 INFO L87 Difference]: Start difference. First operand 1824 states and 2887 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:07,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:07,347 INFO L93 Difference]: Finished difference Result 2342 states and 3687 transitions. [2022-11-23 03:59:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:59:07,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-23 03:59:07,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:07,357 INFO L225 Difference]: With dead ends: 2342 [2022-11-23 03:59:07,357 INFO L226 Difference]: Without dead ends: 2071 [2022-11-23 03:59:07,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:07,361 INFO L413 NwaCegarLoop]: 1626 mSDtfsCounter, 1504 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:07,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:59:07,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2071 states. [2022-11-23 03:59:07,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2071 to 2069. [2022-11-23 03:59:07,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2067 states have (on average 1.5766811804547654) internal successors, (3259), 2068 states have internal predecessors, (3259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3259 transitions. [2022-11-23 03:59:07,494 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3259 transitions. Word has length 69 [2022-11-23 03:59:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:07,495 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 3259 transitions. [2022-11-23 03:59:07,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3259 transitions. [2022-11-23 03:59:07,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 03:59:07,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:07,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:07,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:59:07,505 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:07,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:07,506 INFO L85 PathProgramCache]: Analyzing trace with hash -870160956, now seen corresponding path program 1 times [2022-11-23 03:59:07,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:07,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769896143] [2022-11-23 03:59:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:07,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:07,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:07,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769896143] [2022-11-23 03:59:07,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769896143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:07,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:07,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:59:07,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279013577] [2022-11-23 03:59:07,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:07,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:59:07,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:07,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:59:07,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:07,594 INFO L87 Difference]: Start difference. First operand 2069 states and 3259 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:07,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:07,904 INFO L93 Difference]: Finished difference Result 3053 states and 4761 transitions. [2022-11-23 03:59:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:59:07,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-23 03:59:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:07,915 INFO L225 Difference]: With dead ends: 3053 [2022-11-23 03:59:07,915 INFO L226 Difference]: Without dead ends: 2537 [2022-11-23 03:59:07,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:07,918 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 1500 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:07,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 1704 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:59:07,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2022-11-23 03:59:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2535. [2022-11-23 03:59:08,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2533 states have (on average 1.5613896565337544) internal successors, (3955), 2534 states have internal predecessors, (3955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3955 transitions. [2022-11-23 03:59:08,304 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3955 transitions. Word has length 69 [2022-11-23 03:59:08,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:08,304 INFO L495 AbstractCegarLoop]: Abstraction has 2535 states and 3955 transitions. [2022-11-23 03:59:08,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:08,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3955 transitions. [2022-11-23 03:59:08,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 03:59:08,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:08,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:08,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 03:59:08,307 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:08,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:08,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1209337540, now seen corresponding path program 1 times [2022-11-23 03:59:08,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:08,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386966575] [2022-11-23 03:59:08,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:08,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:08,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:08,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386966575] [2022-11-23 03:59:08,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386966575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:08,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:08,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:59:08,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148768894] [2022-11-23 03:59:08,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:08,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:59:08,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:59:08,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:08,402 INFO L87 Difference]: Start difference. First operand 2535 states and 3955 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:08,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:08,927 INFO L93 Difference]: Finished difference Result 4403 states and 6765 transitions. [2022-11-23 03:59:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:59:08,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-23 03:59:08,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:08,942 INFO L225 Difference]: With dead ends: 4403 [2022-11-23 03:59:08,942 INFO L226 Difference]: Without dead ends: 3421 [2022-11-23 03:59:08,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:08,946 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 1498 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:08,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1706 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:59:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3421 states. [2022-11-23 03:59:09,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3421 to 3419. [2022-11-23 03:59:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 3417 states have (on average 1.5367281240854551) internal successors, (5251), 3418 states have internal predecessors, (5251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 5251 transitions. [2022-11-23 03:59:09,389 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 5251 transitions. Word has length 69 [2022-11-23 03:59:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:09,392 INFO L495 AbstractCegarLoop]: Abstraction has 3419 states and 5251 transitions. [2022-11-23 03:59:09,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 5251 transitions. [2022-11-23 03:59:09,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 03:59:09,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:09,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:09,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 03:59:09,396 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:09,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:09,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1304696892, now seen corresponding path program 1 times [2022-11-23 03:59:09,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:09,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652538266] [2022-11-23 03:59:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:09,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:09,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:09,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:09,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652538266] [2022-11-23 03:59:09,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652538266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:09,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:09,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:59:09,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519583661] [2022-11-23 03:59:09,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:09,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:59:09,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:59:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:09,484 INFO L87 Difference]: Start difference. First operand 3419 states and 5251 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:10,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:10,169 INFO L93 Difference]: Finished difference Result 6959 states and 10485 transitions. [2022-11-23 03:59:10,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:59:10,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-23 03:59:10,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:10,203 INFO L225 Difference]: With dead ends: 6959 [2022-11-23 03:59:10,210 INFO L226 Difference]: Without dead ends: 5093 [2022-11-23 03:59:10,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:10,214 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 1496 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:10,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:59:10,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5093 states. [2022-11-23 03:59:10,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5093 to 5091. [2022-11-23 03:59:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5091 states, 5089 states have (on average 1.5034387895460797) internal successors, (7651), 5090 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:10,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5091 states to 5091 states and 7651 transitions. [2022-11-23 03:59:10,978 INFO L78 Accepts]: Start accepts. Automaton has 5091 states and 7651 transitions. Word has length 69 [2022-11-23 03:59:10,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:10,978 INFO L495 AbstractCegarLoop]: Abstraction has 5091 states and 7651 transitions. [2022-11-23 03:59:10,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:10,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5091 states and 7651 transitions. [2022-11-23 03:59:10,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 03:59:10,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:10,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:10,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 03:59:10,980 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:10,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:10,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2108422972, now seen corresponding path program 1 times [2022-11-23 03:59:10,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:10,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65140116] [2022-11-23 03:59:10,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:10,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:11,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:59:11,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:11,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65140116] [2022-11-23 03:59:11,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65140116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:11,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:11,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:59:11,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774209272] [2022-11-23 03:59:11,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:11,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:59:11,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:11,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:59:11,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:11,041 INFO L87 Difference]: Start difference. First operand 5091 states and 7651 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:12,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:12,362 INFO L93 Difference]: Finished difference Result 11783 states and 17349 transitions. [2022-11-23 03:59:12,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:59:12,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-23 03:59:12,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:12,384 INFO L225 Difference]: With dead ends: 11783 [2022-11-23 03:59:12,385 INFO L226 Difference]: Without dead ends: 8245 [2022-11-23 03:59:12,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:59:12,393 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1502 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:12,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 1710 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:59:12,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2022-11-23 03:59:14,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 8243. [2022-11-23 03:59:14,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8243 states, 8241 states have (on average 1.464264045625531) internal successors, (12067), 8242 states have internal predecessors, (12067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8243 states to 8243 states and 12067 transitions. [2022-11-23 03:59:14,225 INFO L78 Accepts]: Start accepts. Automaton has 8243 states and 12067 transitions. Word has length 69 [2022-11-23 03:59:14,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:14,225 INFO L495 AbstractCegarLoop]: Abstraction has 8243 states and 12067 transitions. [2022-11-23 03:59:14,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:14,227 INFO L276 IsEmpty]: Start isEmpty. Operand 8243 states and 12067 transitions. [2022-11-23 03:59:14,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 03:59:14,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:14,231 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:14,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 03:59:14,231 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash -2062508441, now seen corresponding path program 1 times [2022-11-23 03:59:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:14,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744011467] [2022-11-23 03:59:14,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:14,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:14,514 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 03:59:14,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:14,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744011467] [2022-11-23 03:59:14,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744011467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:14,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:14,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 03:59:14,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695504156] [2022-11-23 03:59:14,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:14,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:59:14,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:14,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:59:14,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:59:14,517 INFO L87 Difference]: Start difference. First operand 8243 states and 12067 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:20,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:20,150 INFO L93 Difference]: Finished difference Result 47841 states and 68842 transitions. [2022-11-23 03:59:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:59:20,151 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-11-23 03:59:20,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:20,253 INFO L225 Difference]: With dead ends: 47841 [2022-11-23 03:59:20,254 INFO L226 Difference]: Without dead ends: 43103 [2022-11-23 03:59:20,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:59:20,270 INFO L413 NwaCegarLoop]: 1636 mSDtfsCounter, 8081 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8081 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:20,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8081 Valid, 4001 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:59:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43103 states. [2022-11-23 03:59:23,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43103 to 13971. [2022-11-23 03:59:23,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13971 states, 13969 states have (on average 1.445701195504331) internal successors, (20195), 13970 states have internal predecessors, (20195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:23,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13971 states to 13971 states and 20195 transitions. [2022-11-23 03:59:23,289 INFO L78 Accepts]: Start accepts. Automaton has 13971 states and 20195 transitions. Word has length 90 [2022-11-23 03:59:23,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:23,290 INFO L495 AbstractCegarLoop]: Abstraction has 13971 states and 20195 transitions. [2022-11-23 03:59:23,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 8 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 13971 states and 20195 transitions. [2022-11-23 03:59:23,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 03:59:23,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:23,295 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:23,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 03:59:23,296 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:23,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:23,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1899593881, now seen corresponding path program 1 times [2022-11-23 03:59:23,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:23,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854616103] [2022-11-23 03:59:23,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:23,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 03:59:23,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:23,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854616103] [2022-11-23 03:59:23,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854616103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:23,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:23,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 03:59:23,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527802586] [2022-11-23 03:59:23,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:23,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:59:23,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:59:23,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:59:23,581 INFO L87 Difference]: Start difference. First operand 13971 states and 20195 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:32,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:32,345 INFO L93 Difference]: Finished difference Result 54529 states and 78378 transitions. [2022-11-23 03:59:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:59:32,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-11-23 03:59:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:32,478 INFO L225 Difference]: With dead ends: 54529 [2022-11-23 03:59:32,478 INFO L226 Difference]: Without dead ends: 47839 [2022-11-23 03:59:32,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:59:32,501 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 8083 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8083 SdHoareTripleChecker+Valid, 3964 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:32,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8083 Valid, 3964 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:59:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47839 states. [2022-11-23 03:59:37,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47839 to 23027. [2022-11-23 03:59:37,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23027 states, 23025 states have (on average 1.4343973941368078) internal successors, (33027), 23026 states have internal predecessors, (33027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:37,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23027 states to 23027 states and 33027 transitions. [2022-11-23 03:59:37,626 INFO L78 Accepts]: Start accepts. Automaton has 23027 states and 33027 transitions. Word has length 90 [2022-11-23 03:59:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:37,626 INFO L495 AbstractCegarLoop]: Abstraction has 23027 states and 33027 transitions. [2022-11-23 03:59:37,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 23027 states and 33027 transitions. [2022-11-23 03:59:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 03:59:37,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:37,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:37,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 03:59:37,633 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:37,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash -397475481, now seen corresponding path program 1 times [2022-11-23 03:59:37,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:37,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029158467] [2022-11-23 03:59:37,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:37,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:37,869 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 03:59:37,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:37,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029158467] [2022-11-23 03:59:37,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029158467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:37,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:37,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 03:59:37,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057632281] [2022-11-23 03:59:37,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:37,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:59:37,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:37,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:59:37,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:59:37,873 INFO L87 Difference]: Start difference. First operand 23027 states and 33027 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:46,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:59:46,900 INFO L93 Difference]: Finished difference Result 61217 states and 87882 transitions. [2022-11-23 03:59:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:59:46,900 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-11-23 03:59:46,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:59:47,027 INFO L225 Difference]: With dead ends: 61217 [2022-11-23 03:59:47,028 INFO L226 Difference]: Without dead ends: 54527 [2022-11-23 03:59:47,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:59:47,049 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 8123 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8123 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:59:47,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8123 Valid, 4002 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:59:47,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54527 states. [2022-11-23 03:59:51,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54527 to 29715. [2022-11-23 03:59:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29715 states, 29713 states have (on average 1.4313936660720896) internal successors, (42531), 29714 states have internal predecessors, (42531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:52,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29715 states to 29715 states and 42531 transitions. [2022-11-23 03:59:52,044 INFO L78 Accepts]: Start accepts. Automaton has 29715 states and 42531 transitions. Word has length 90 [2022-11-23 03:59:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:59:52,044 INFO L495 AbstractCegarLoop]: Abstraction has 29715 states and 42531 transitions. [2022-11-23 03:59:52,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:59:52,045 INFO L276 IsEmpty]: Start isEmpty. Operand 29715 states and 42531 transitions. [2022-11-23 03:59:52,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 03:59:52,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:59:52,050 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:59:52,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 03:59:52,051 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 03:59:52,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:59:52,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1682023015, now seen corresponding path program 1 times [2022-11-23 03:59:52,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:59:52,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682990552] [2022-11-23 03:59:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:59:52,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:59:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:59:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 03:59:52,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:59:52,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682990552] [2022-11-23 03:59:52,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682990552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:59:52,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:59:52,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 03:59:52,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023180916] [2022-11-23 03:59:52,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:59:52,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:59:52,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:59:52,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:59:52,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:59:52,299 INFO L87 Difference]: Start difference. First operand 29715 states and 42531 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:00:02,557 INFO L93 Difference]: Finished difference Result 67905 states and 97386 transitions. [2022-11-23 04:00:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 04:00:02,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-11-23 04:00:02,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:00:02,701 INFO L225 Difference]: With dead ends: 67905 [2022-11-23 04:00:02,701 INFO L226 Difference]: Without dead ends: 61215 [2022-11-23 04:00:02,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-23 04:00:02,727 INFO L413 NwaCegarLoop]: 1631 mSDtfsCounter, 8180 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8180 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 04:00:02,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8180 Valid, 3946 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 04:00:02,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61215 states. [2022-11-23 04:00:08,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61215 to 36403. [2022-11-23 04:00:08,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36403 states, 36401 states have (on average 1.4294936952281532) internal successors, (52035), 36402 states have internal predecessors, (52035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:08,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36403 states to 36403 states and 52035 transitions. [2022-11-23 04:00:08,864 INFO L78 Accepts]: Start accepts. Automaton has 36403 states and 52035 transitions. Word has length 90 [2022-11-23 04:00:08,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:00:08,865 INFO L495 AbstractCegarLoop]: Abstraction has 36403 states and 52035 transitions. [2022-11-23 04:00:08,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:08,865 INFO L276 IsEmpty]: Start isEmpty. Operand 36403 states and 52035 transitions. [2022-11-23 04:00:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 04:00:08,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:00:08,872 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:00:08,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 04:00:08,872 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:00:08,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:00:08,873 INFO L85 PathProgramCache]: Analyzing trace with hash -832011417, now seen corresponding path program 1 times [2022-11-23 04:00:08,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:00:08,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248431919] [2022-11-23 04:00:08,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:00:08,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:00:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:00:09,139 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 04:00:09,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:00:09,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248431919] [2022-11-23 04:00:09,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248431919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:00:09,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:00:09,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 04:00:09,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108232582] [2022-11-23 04:00:09,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:00:09,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:00:09,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:00:09,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:00:09,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:00:09,142 INFO L87 Difference]: Start difference. First operand 36403 states and 52035 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 04:00:20,850 INFO L93 Difference]: Finished difference Result 74593 states and 106890 transitions. [2022-11-23 04:00:20,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 04:00:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-11-23 04:00:20,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 04:00:20,992 INFO L225 Difference]: With dead ends: 74593 [2022-11-23 04:00:20,992 INFO L226 Difference]: Without dead ends: 67903 [2022-11-23 04:00:21,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-23 04:00:21,008 INFO L413 NwaCegarLoop]: 1631 mSDtfsCounter, 8093 mSDsluCounter, 2375 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8093 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 04:00:21,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8093 Valid, 4006 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 04:00:21,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67903 states. [2022-11-23 04:00:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67903 to 43091. [2022-11-23 04:00:28,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43091 states, 43089 states have (on average 1.42818352711829) internal successors, (61539), 43090 states have internal predecessors, (61539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:28,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43091 states to 43091 states and 61539 transitions. [2022-11-23 04:00:28,994 INFO L78 Accepts]: Start accepts. Automaton has 43091 states and 61539 transitions. Word has length 90 [2022-11-23 04:00:28,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 04:00:28,994 INFO L495 AbstractCegarLoop]: Abstraction has 43091 states and 61539 transitions. [2022-11-23 04:00:28,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 04:00:28,994 INFO L276 IsEmpty]: Start isEmpty. Operand 43091 states and 61539 transitions. [2022-11-23 04:00:28,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 04:00:28,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 04:00:28,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 04:00:29,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 04:00:29,000 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 04:00:29,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 04:00:29,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1635737497, now seen corresponding path program 1 times [2022-11-23 04:00:29,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 04:00:29,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189047389] [2022-11-23 04:00:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 04:00:29,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 04:00:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 04:00:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 04:00:29,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 04:00:29,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189047389] [2022-11-23 04:00:29,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189047389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 04:00:29,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 04:00:29,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 04:00:29,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948996157] [2022-11-23 04:00:29,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 04:00:29,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 04:00:29,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 04:00:29,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 04:00:29,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 04:00:29,200 INFO L87 Difference]: Start difference. First operand 43091 states and 61539 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)