./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8 --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 379867ea0961f41e6474fa8c55575cf4bd65e7485349e160061a341c7749e45b --- 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-2329fc7 [2022-12-13 10:55:46,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 10:55:46,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 10:55:46,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 10:55:46,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 10:55:46,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 10:55:46,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 10:55:46,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 10:55:46,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 10:55:46,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 10:55:46,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 10:55:46,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 10:55:46,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 10:55:46,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 10:55:46,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 10:55:46,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 10:55:46,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 10:55:46,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 10:55:46,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 10:55:46,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 10:55:46,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 10:55:46,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 10:55:46,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 10:55:46,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 10:55:46,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 10:55:46,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 10:55:46,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 10:55:46,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 10:55:46,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 10:55:46,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 10:55:46,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 10:55:46,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 10:55:46,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 10:55:46,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 10:55:46,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 10:55:46,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 10:55:46,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 10:55:46,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 10:55:46,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 10:55:46,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 10:55:46,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 10:55:46,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 10:55:46,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 10:55:46,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 10:55:46,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 10:55:46,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 10:55:46,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 10:55:46,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 10:55:46,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 10:55:46,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 10:55:46,719 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 10:55:46,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 10:55:46,719 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 10:55:46,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 10:55:46,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 10:55:46,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 10:55:46,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 10:55:46,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 10:55:46,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 10:55:46,725 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 10:55:46,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 10:55:46,725 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 10:55:46,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 10:55:46,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 10:55:46,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 10:55:46,726 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 10:55:46,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 10:55:46,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 10:55:46,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 10:55:46,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 10:55:46,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 10:55:46,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 10:55:46,727 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 10:55:46,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 10:55:46,727 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 10:55:46,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 10:55:46,728 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 10:55:46,728 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_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 379867ea0961f41e6474fa8c55575cf4bd65e7485349e160061a341c7749e45b [2022-12-13 10:55:46,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 10:55:46,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 10:55:46,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 10:55:46,933 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 10:55:46,933 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 10:55:46,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-12-13 10:55:49,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 10:55:49,649 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 10:55:49,650 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-12-13 10:55:49,659 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/data/49ae041b8/8f648b714b384d3399a0e01689bea3f2/FLAG990b4e501 [2022-12-13 10:55:50,026 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/data/49ae041b8/8f648b714b384d3399a0e01689bea3f2 [2022-12-13 10:55:50,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 10:55:50,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 10:55:50,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 10:55:50,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 10:55:50,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 10:55:50,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752819f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50, skipping insertion in model container [2022-12-13 10:55:50,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 10:55:50,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 10:55:50,202 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_bef685c5-dbec-4503-8e56-9273ba9903c8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7471,7484] [2022-12-13 10:55:50,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:55:50,240 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 10:55:50,271 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_bef685c5-dbec-4503-8e56-9273ba9903c8/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7471,7484] [2022-12-13 10:55:50,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:55:50,303 INFO L208 MainTranslator]: Completed translation [2022-12-13 10:55:50,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50 WrapperNode [2022-12-13 10:55:50,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 10:55:50,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 10:55:50,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 10:55:50,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 10:55:50,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,338 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 613 [2022-12-13 10:55:50,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 10:55:50,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 10:55:50,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 10:55:50,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 10:55:50,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,358 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 10:55:50,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 10:55:50,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 10:55:50,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 10:55:50,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (1/1) ... [2022-12-13 10:55:50,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 10:55:50,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 10:55:50,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 10:55:50,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 10:55:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 10:55:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 10:55:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 10:55:50,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 10:55:50,512 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 10:55:50,514 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 10:55:50,910 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 10:55:50,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 10:55:50,917 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 10:55:50,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:50 BoogieIcfgContainer [2022-12-13 10:55:50,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 10:55:50,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 10:55:50,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 10:55:50,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 10:55:50,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:55:50" (1/3) ... [2022-12-13 10:55:50,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cb2fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:55:50, skipping insertion in model container [2022-12-13 10:55:50,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:50" (2/3) ... [2022-12-13 10:55:50,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cb2fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:55:50, skipping insertion in model container [2022-12-13 10:55:50,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:50" (3/3) ... [2022-12-13 10:55:50,925 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2022-12-13 10:55:50,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 10:55:50,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 10:55:50,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 10:55:50,990 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;@4b3d964a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 10:55:50,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 10:55:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 160 states have (on average 1.70625) internal successors, (273), 161 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:50,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 10:55:50,998 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:50,999 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] [2022-12-13 10:55:50,999 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:51,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:51,003 INFO L85 PathProgramCache]: Analyzing trace with hash 985312972, now seen corresponding path program 1 times [2022-12-13 10:55:51,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:51,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364740309] [2022-12-13 10:55:51,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:51,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:51,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:51,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364740309] [2022-12-13 10:55:51,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364740309] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:51,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:51,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 10:55:51,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405998708] [2022-12-13 10:55:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:51,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 10:55:51,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:51,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:55:51,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:55:51,328 INFO L87 Difference]: Start difference. First operand has 162 states, 160 states have (on average 1.70625) internal successors, (273), 161 states have internal predecessors, (273), 0 states have call successors, (0), 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 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:51,482 INFO L93 Difference]: Finished difference Result 517 states and 836 transitions. [2022-12-13 10:55:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 10:55:51,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-12-13 10:55:51,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:51,493 INFO L225 Difference]: With dead ends: 517 [2022-12-13 10:55:51,493 INFO L226 Difference]: Without dead ends: 438 [2022-12-13 10:55:51,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:55:51,498 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 913 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:51,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1288 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 10:55:51,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-12-13 10:55:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 256. [2022-12-13 10:55:51,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.4980392156862745) internal successors, (382), 255 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 382 transitions. [2022-12-13 10:55:51,542 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 382 transitions. Word has length 50 [2022-12-13 10:55:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:51,542 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 382 transitions. [2022-12-13 10:55:51,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,542 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 382 transitions. [2022-12-13 10:55:51,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 10:55:51,543 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:51,543 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] [2022-12-13 10:55:51,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 10:55:51,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:51,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:51,544 INFO L85 PathProgramCache]: Analyzing trace with hash -722006169, now seen corresponding path program 1 times [2022-12-13 10:55:51,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:51,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699863793] [2022-12-13 10:55:51,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:51,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:51,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:51,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699863793] [2022-12-13 10:55:51,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699863793] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:51,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:51,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:55:51,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710691895] [2022-12-13 10:55:51,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:51,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:55:51,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:55:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:55:51,610 INFO L87 Difference]: Start difference. First operand 256 states and 382 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:51,674 INFO L93 Difference]: Finished difference Result 628 states and 954 transitions. [2022-12-13 10:55:51,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:55:51,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-12-13 10:55:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:51,676 INFO L225 Difference]: With dead ends: 628 [2022-12-13 10:55:51,676 INFO L226 Difference]: Without dead ends: 430 [2022-12-13 10:55:51,676 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 [2022-12-13 10:55:51,677 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:51,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 420 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:55:51,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-12-13 10:55:51,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 428. [2022-12-13 10:55:51,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 427 states have (on average 1.484777517564403) internal successors, (634), 427 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 634 transitions. [2022-12-13 10:55:51,707 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 634 transitions. Word has length 53 [2022-12-13 10:55:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:51,707 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 634 transitions. [2022-12-13 10:55:51,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,707 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 634 transitions. [2022-12-13 10:55:51,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 10:55:51,708 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:51,708 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] [2022-12-13 10:55:51,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 10:55:51,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:51,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:51,709 INFO L85 PathProgramCache]: Analyzing trace with hash -695460410, now seen corresponding path program 1 times [2022-12-13 10:55:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:51,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920672441] [2022-12-13 10:55:51,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:51,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:51,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:51,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920672441] [2022-12-13 10:55:51,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920672441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:51,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:51,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:55:51,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992731274] [2022-12-13 10:55:51,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:51,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:55:51,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:51,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:55:51,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:55:51,767 INFO L87 Difference]: Start difference. First operand 428 states and 634 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:51,828 INFO L93 Difference]: Finished difference Result 1078 states and 1615 transitions. [2022-12-13 10:55:51,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:55:51,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-12-13 10:55:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:51,831 INFO L225 Difference]: With dead ends: 1078 [2022-12-13 10:55:51,831 INFO L226 Difference]: Without dead ends: 750 [2022-12-13 10:55:51,831 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 [2022-12-13 10:55:51,832 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 157 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:51,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 434 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:55:51,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-12-13 10:55:51,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 748. [2022-12-13 10:55:51,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 747 states have (on average 1.4725568942436413) internal successors, (1100), 747 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1100 transitions. [2022-12-13 10:55:51,874 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1100 transitions. Word has length 53 [2022-12-13 10:55:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:51,874 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 1100 transitions. [2022-12-13 10:55:51,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:51,874 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1100 transitions. [2022-12-13 10:55:51,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 10:55:51,875 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:51,875 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] [2022-12-13 10:55:51,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 10:55:51,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash -272648633, now seen corresponding path program 1 times [2022-12-13 10:55:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:51,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774099174] [2022-12-13 10:55:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:51,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:51,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:51,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774099174] [2022-12-13 10:55:51,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774099174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:51,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:51,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:55:51,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663307639] [2022-12-13 10:55:51,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:51,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:55:51,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:51,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:55:51,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:55:51,936 INFO L87 Difference]: Start difference. First operand 748 states and 1100 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:52,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:52,047 INFO L93 Difference]: Finished difference Result 1859 states and 2747 transitions. [2022-12-13 10:55:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:55:52,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-12-13 10:55:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:52,050 INFO L225 Difference]: With dead ends: 1859 [2022-12-13 10:55:52,050 INFO L226 Difference]: Without dead ends: 1295 [2022-12-13 10:55:52,051 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 [2022-12-13 10:55:52,052 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 144 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:52,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 434 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:55:52,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2022-12-13 10:55:52,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1293. [2022-12-13 10:55:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1292 states have (on average 1.4504643962848298) internal successors, (1874), 1292 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:52,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1874 transitions. [2022-12-13 10:55:52,135 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1874 transitions. Word has length 53 [2022-12-13 10:55:52,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:52,135 INFO L495 AbstractCegarLoop]: Abstraction has 1293 states and 1874 transitions. [2022-12-13 10:55:52,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:52,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1874 transitions. [2022-12-13 10:55:52,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 10:55:52,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:52,137 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] [2022-12-13 10:55:52,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 10:55:52,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:52,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1724922721, now seen corresponding path program 1 times [2022-12-13 10:55:52,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317627480] [2022-12-13 10:55:52,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:52,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:52,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317627480] [2022-12-13 10:55:52,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317627480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:52,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:52,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 10:55:52,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791410859] [2022-12-13 10:55:52,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:52,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 10:55:52,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:52,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:55:52,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:55:52,232 INFO L87 Difference]: Start difference. First operand 1293 states and 1874 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:52,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:52,434 INFO L93 Difference]: Finished difference Result 2516 states and 3713 transitions. [2022-12-13 10:55:52,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 10:55:52,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-12-13 10:55:52,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:52,442 INFO L225 Difference]: With dead ends: 2516 [2022-12-13 10:55:52,442 INFO L226 Difference]: Without dead ends: 2150 [2022-12-13 10:55:52,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:55:52,444 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 633 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:52,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1128 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 10:55:52,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2022-12-13 10:55:52,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 1745. [2022-12-13 10:55:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1744 states have (on average 1.4581422018348624) internal successors, (2543), 1744 states have internal predecessors, (2543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:52,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2543 transitions. [2022-12-13 10:55:52,564 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2543 transitions. Word has length 54 [2022-12-13 10:55:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:52,565 INFO L495 AbstractCegarLoop]: Abstraction has 1745 states and 2543 transitions. [2022-12-13 10:55:52,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2543 transitions. [2022-12-13 10:55:52,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 10:55:52,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:52,566 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] [2022-12-13 10:55:52,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 10:55:52,566 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:52,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1943574737, now seen corresponding path program 1 times [2022-12-13 10:55:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:52,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62491832] [2022-12-13 10:55:52,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:52,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:52,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62491832] [2022-12-13 10:55:52,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62491832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:52,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:52,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 10:55:52,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375065479] [2022-12-13 10:55:52,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:52,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 10:55:52,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:52,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:55:52,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:55:52,647 INFO L87 Difference]: Start difference. First operand 1745 states and 2543 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:52,883 INFO L93 Difference]: Finished difference Result 2968 states and 4382 transitions. [2022-12-13 10:55:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 10:55:52,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-12-13 10:55:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:52,892 INFO L225 Difference]: With dead ends: 2968 [2022-12-13 10:55:52,893 INFO L226 Difference]: Without dead ends: 2602 [2022-12-13 10:55:52,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:55:52,895 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 623 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:52,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 1029 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 10:55:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2022-12-13 10:55:53,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2091. [2022-12-13 10:55:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 2090 states have (on average 1.4631578947368422) internal successors, (3058), 2090 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:53,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 3058 transitions. [2022-12-13 10:55:53,040 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 3058 transitions. Word has length 54 [2022-12-13 10:55:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:53,040 INFO L495 AbstractCegarLoop]: Abstraction has 2091 states and 3058 transitions. [2022-12-13 10:55:53,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 3058 transitions. [2022-12-13 10:55:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-13 10:55:53,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:53,042 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] [2022-12-13 10:55:53,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 10:55:53,042 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:53,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:53,043 INFO L85 PathProgramCache]: Analyzing trace with hash -867408349, now seen corresponding path program 1 times [2022-12-13 10:55:53,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:53,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284105131] [2022-12-13 10:55:53,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:53,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:53,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:53,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284105131] [2022-12-13 10:55:53,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284105131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:53,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:53,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 10:55:53,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933928625] [2022-12-13 10:55:53,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:53,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 10:55:53,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:53,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:55:53,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:55:53,131 INFO L87 Difference]: Start difference. First operand 2091 states and 3058 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:53,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:53,392 INFO L93 Difference]: Finished difference Result 3367 states and 4972 transitions. [2022-12-13 10:55:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 10:55:53,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-12-13 10:55:53,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:53,402 INFO L225 Difference]: With dead ends: 3367 [2022-12-13 10:55:53,402 INFO L226 Difference]: Without dead ends: 3001 [2022-12-13 10:55:53,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:55:53,404 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 627 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:53,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1128 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 10:55:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2022-12-13 10:55:53,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 2382. [2022-12-13 10:55:53,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2381 states have (on average 1.4666106677866442) internal successors, (3492), 2381 states have internal predecessors, (3492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:53,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3492 transitions. [2022-12-13 10:55:53,534 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3492 transitions. Word has length 54 [2022-12-13 10:55:53,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:53,534 INFO L495 AbstractCegarLoop]: Abstraction has 2382 states and 3492 transitions. [2022-12-13 10:55:53,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:53,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3492 transitions. [2022-12-13 10:55:53,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 10:55:53,535 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:53,535 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] [2022-12-13 10:55:53,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 10:55:53,535 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:53,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:53,536 INFO L85 PathProgramCache]: Analyzing trace with hash -554993830, now seen corresponding path program 1 times [2022-12-13 10:55:53,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:53,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113010480] [2022-12-13 10:55:53,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:53,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:53,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:53,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113010480] [2022-12-13 10:55:53,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113010480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:53,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:53,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 10:55:53,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341447554] [2022-12-13 10:55:53,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:53,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 10:55:53,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:53,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:55:53,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:55:53,614 INFO L87 Difference]: Start difference. First operand 2382 states and 3492 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:54,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:54,131 INFO L93 Difference]: Finished difference Result 6768 states and 9953 transitions. [2022-12-13 10:55:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 10:55:54,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-12-13 10:55:54,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:54,145 INFO L225 Difference]: With dead ends: 6768 [2022-12-13 10:55:54,146 INFO L226 Difference]: Without dead ends: 4414 [2022-12-13 10:55:54,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:55:54,156 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 939 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:54,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 216 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 10:55:54,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4414 states. [2022-12-13 10:55:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4414 to 4387. [2022-12-13 10:55:54,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4387 states, 4386 states have (on average 1.459188326493388) internal successors, (6400), 4386 states have internal predecessors, (6400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4387 states to 4387 states and 6400 transitions. [2022-12-13 10:55:54,526 INFO L78 Accepts]: Start accepts. Automaton has 4387 states and 6400 transitions. Word has length 58 [2022-12-13 10:55:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:54,526 INFO L495 AbstractCegarLoop]: Abstraction has 4387 states and 6400 transitions. [2022-12-13 10:55:54,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4387 states and 6400 transitions. [2022-12-13 10:55:54,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-12-13 10:55:54,527 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:54,527 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] [2022-12-13 10:55:54,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 10:55:54,528 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:54,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:54,528 INFO L85 PathProgramCache]: Analyzing trace with hash 500702524, now seen corresponding path program 1 times [2022-12-13 10:55:54,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:54,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804017690] [2022-12-13 10:55:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:54,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:54,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:54,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804017690] [2022-12-13 10:55:54,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804017690] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:54,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:54,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 10:55:54,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787826019] [2022-12-13 10:55:54,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:54,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 10:55:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:54,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:55:54,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:55:54,598 INFO L87 Difference]: Start difference. First operand 4387 states and 6400 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:55,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:55,193 INFO L93 Difference]: Finished difference Result 10511 states and 15319 transitions. [2022-12-13 10:55:55,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 10:55:55,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-12-13 10:55:55,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:55,205 INFO L225 Difference]: With dead ends: 10511 [2022-12-13 10:55:55,206 INFO L226 Difference]: Without dead ends: 6170 [2022-12-13 10:55:55,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:55:55,209 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 890 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:55,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 226 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 10:55:55,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2022-12-13 10:55:55,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 6136. [2022-12-13 10:55:55,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6136 states, 6135 states have (on average 1.4454767726161368) internal successors, (8868), 6135 states have internal predecessors, (8868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:55,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6136 states to 6136 states and 8868 transitions. [2022-12-13 10:55:55,595 INFO L78 Accepts]: Start accepts. Automaton has 6136 states and 8868 transitions. Word has length 58 [2022-12-13 10:55:55,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:55,595 INFO L495 AbstractCegarLoop]: Abstraction has 6136 states and 8868 transitions. [2022-12-13 10:55:55,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:55,595 INFO L276 IsEmpty]: Start isEmpty. Operand 6136 states and 8868 transitions. [2022-12-13 10:55:55,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-12-13 10:55:55,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:55,598 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] [2022-12-13 10:55:55,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 10:55:55,598 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:55,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:55,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1531409244, now seen corresponding path program 1 times [2022-12-13 10:55:55,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:55,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082061416] [2022-12-13 10:55:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:55,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:55,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:55,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082061416] [2022-12-13 10:55:55,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082061416] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:55,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:55,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 10:55:55,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603869963] [2022-12-13 10:55:55,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:55,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 10:55:55,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:55,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:55:55,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:55:55,671 INFO L87 Difference]: Start difference. First operand 6136 states and 8868 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:56,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:56,444 INFO L93 Difference]: Finished difference Result 14628 states and 21107 transitions. [2022-12-13 10:55:56,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 10:55:56,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-12-13 10:55:56,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:56,466 INFO L225 Difference]: With dead ends: 14628 [2022-12-13 10:55:56,466 INFO L226 Difference]: Without dead ends: 8574 [2022-12-13 10:55:56,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:55:56,472 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 845 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:56,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 228 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 10:55:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8574 states. [2022-12-13 10:55:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8574 to 8526. [2022-12-13 10:55:57,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8526 states, 8525 states have (on average 1.4294428152492669) internal successors, (12186), 8525 states have internal predecessors, (12186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:57,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8526 states to 8526 states and 12186 transitions. [2022-12-13 10:55:57,103 INFO L78 Accepts]: Start accepts. Automaton has 8526 states and 12186 transitions. Word has length 59 [2022-12-13 10:55:57,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:55:57,103 INFO L495 AbstractCegarLoop]: Abstraction has 8526 states and 12186 transitions. [2022-12-13 10:55:57,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:57,104 INFO L276 IsEmpty]: Start isEmpty. Operand 8526 states and 12186 transitions. [2022-12-13 10:55:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-13 10:55:57,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:55:57,106 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] [2022-12-13 10:55:57,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 10:55:57,107 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:55:57,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:55:57,107 INFO L85 PathProgramCache]: Analyzing trace with hash -97252013, now seen corresponding path program 1 times [2022-12-13 10:55:57,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:55:57,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112274525] [2022-12-13 10:55:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:55:57,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:55:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:55:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:55:57,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:55:57,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112274525] [2022-12-13 10:55:57,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112274525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:55:57,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:55:57,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 10:55:57,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561275639] [2022-12-13 10:55:57,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:55:57,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 10:55:57,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:55:57,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 10:55:57,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:55:57,199 INFO L87 Difference]: Start difference. First operand 8526 states and 12186 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:55:59,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:55:59,818 INFO L93 Difference]: Finished difference Result 33189 states and 47108 transitions. [2022-12-13 10:55:59,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 10:55:59,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-12-13 10:55:59,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:55:59,861 INFO L225 Difference]: With dead ends: 33189 [2022-12-13 10:55:59,861 INFO L226 Difference]: Without dead ends: 28811 [2022-12-13 10:55:59,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 10:55:59,868 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 2094 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 10:55:59,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 343 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 10:55:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28811 states. [2022-12-13 10:56:00,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28811 to 8546. [2022-12-13 10:56:00,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8546 states, 8545 states have (on average 1.4289057928613225) internal successors, (12210), 8545 states have internal predecessors, (12210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8546 states to 8546 states and 12210 transitions. [2022-12-13 10:56:01,007 INFO L78 Accepts]: Start accepts. Automaton has 8546 states and 12210 transitions. Word has length 60 [2022-12-13 10:56:01,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:01,007 INFO L495 AbstractCegarLoop]: Abstraction has 8546 states and 12210 transitions. [2022-12-13 10:56:01,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:01,007 INFO L276 IsEmpty]: Start isEmpty. Operand 8546 states and 12210 transitions. [2022-12-13 10:56:01,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-13 10:56:01,010 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:01,010 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] [2022-12-13 10:56:01,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 10:56:01,011 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:01,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash -172891724, now seen corresponding path program 1 times [2022-12-13 10:56:01,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:01,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716526955] [2022-12-13 10:56:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:01,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:01,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:01,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716526955] [2022-12-13 10:56:01,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716526955] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:01,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:01,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 10:56:01,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139950134] [2022-12-13 10:56:01,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:01,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 10:56:01,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:01,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 10:56:01,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:56:01,109 INFO L87 Difference]: Start difference. First operand 8546 states and 12210 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:05,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:05,554 INFO L93 Difference]: Finished difference Result 39223 states and 55832 transitions. [2022-12-13 10:56:05,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 10:56:05,554 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-12-13 10:56:05,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:05,613 INFO L225 Difference]: With dead ends: 39223 [2022-12-13 10:56:05,613 INFO L226 Difference]: Without dead ends: 34969 [2022-12-13 10:56:05,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 10:56:05,624 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 2386 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:05,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 388 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 10:56:05,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34969 states. [2022-12-13 10:56:06,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34969 to 8656. [2022-12-13 10:56:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8656 states, 8655 states have (on average 1.427151935297516) internal successors, (12352), 8655 states have internal predecessors, (12352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8656 states to 8656 states and 12352 transitions. [2022-12-13 10:56:06,823 INFO L78 Accepts]: Start accepts. Automaton has 8656 states and 12352 transitions. Word has length 60 [2022-12-13 10:56:06,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:06,824 INFO L495 AbstractCegarLoop]: Abstraction has 8656 states and 12352 transitions. [2022-12-13 10:56:06,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 8656 states and 12352 transitions. [2022-12-13 10:56:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-13 10:56:06,826 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:06,826 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] [2022-12-13 10:56:06,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 10:56:06,826 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2054897963, now seen corresponding path program 1 times [2022-12-13 10:56:06,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:06,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600600919] [2022-12-13 10:56:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:06,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:06,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:06,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600600919] [2022-12-13 10:56:06,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600600919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:06,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:06,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 10:56:06,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060824752] [2022-12-13 10:56:06,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:06,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 10:56:06,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:06,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 10:56:06,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 10:56:06,917 INFO L87 Difference]: Start difference. First operand 8656 states and 12352 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:13,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:13,962 INFO L93 Difference]: Finished difference Result 45960 states and 65252 transitions. [2022-12-13 10:56:13,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 10:56:13,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-12-13 10:56:13,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:14,010 INFO L225 Difference]: With dead ends: 45960 [2022-12-13 10:56:14,010 INFO L226 Difference]: Without dead ends: 42862 [2022-12-13 10:56:14,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-12-13 10:56:14,019 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 2758 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2758 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:14,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2758 Valid, 410 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 10:56:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42862 states. [2022-12-13 10:56:15,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42862 to 8712. [2022-12-13 10:56:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8712 states, 8711 states have (on average 1.4258982895189989) internal successors, (12421), 8711 states have internal predecessors, (12421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8712 states to 8712 states and 12421 transitions. [2022-12-13 10:56:15,485 INFO L78 Accepts]: Start accepts. Automaton has 8712 states and 12421 transitions. Word has length 60 [2022-12-13 10:56:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:15,486 INFO L495 AbstractCegarLoop]: Abstraction has 8712 states and 12421 transitions. [2022-12-13 10:56:15,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 8712 states and 12421 transitions. [2022-12-13 10:56:15,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 10:56:15,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:15,488 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] [2022-12-13 10:56:15,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 10:56:15,489 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:15,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:15,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1036507303, now seen corresponding path program 1 times [2022-12-13 10:56:15,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:15,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819314336] [2022-12-13 10:56:15,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:15,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:15,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:15,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819314336] [2022-12-13 10:56:15,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819314336] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:15,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:15,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 10:56:15,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566839619] [2022-12-13 10:56:15,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:15,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 10:56:15,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:15,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 10:56:15,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 10:56:15,738 INFO L87 Difference]: Start difference. First operand 8712 states and 12421 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:21,947 INFO L93 Difference]: Finished difference Result 33436 states and 47603 transitions. [2022-12-13 10:56:21,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 10:56:21,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-12-13 10:56:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:21,975 INFO L225 Difference]: With dead ends: 33436 [2022-12-13 10:56:21,975 INFO L226 Difference]: Without dead ends: 26265 [2022-12-13 10:56:21,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-12-13 10:56:21,983 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 2045 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:21,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 1549 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 10:56:21,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26265 states. [2022-12-13 10:56:23,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26265 to 8546. [2022-12-13 10:56:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8546 states, 8545 states have (on average 1.423990637799883) internal successors, (12168), 8545 states have internal predecessors, (12168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8546 states to 8546 states and 12168 transitions. [2022-12-13 10:56:23,669 INFO L78 Accepts]: Start accepts. Automaton has 8546 states and 12168 transitions. Word has length 62 [2022-12-13 10:56:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:23,669 INFO L495 AbstractCegarLoop]: Abstraction has 8546 states and 12168 transitions. [2022-12-13 10:56:23,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:23,669 INFO L276 IsEmpty]: Start isEmpty. Operand 8546 states and 12168 transitions. [2022-12-13 10:56:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 10:56:23,671 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:23,671 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] [2022-12-13 10:56:23,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 10:56:23,672 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1459319080, now seen corresponding path program 1 times [2022-12-13 10:56:23,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:23,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989422514] [2022-12-13 10:56:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:23,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:23,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:23,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:23,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989422514] [2022-12-13 10:56:23,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989422514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:23,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:23,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 10:56:23,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416790091] [2022-12-13 10:56:23,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:23,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 10:56:23,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:23,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 10:56:23,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 10:56:23,872 INFO L87 Difference]: Start difference. First operand 8546 states and 12168 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:29,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:29,975 INFO L93 Difference]: Finished difference Result 28776 states and 40687 transitions. [2022-12-13 10:56:29,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 10:56:29,976 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-12-13 10:56:29,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:29,996 INFO L225 Difference]: With dead ends: 28776 [2022-12-13 10:56:29,996 INFO L226 Difference]: Without dead ends: 21466 [2022-12-13 10:56:30,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2022-12-13 10:56:30,004 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 1941 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1941 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:30,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1941 Valid, 1585 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 10:56:30,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21466 states. [2022-12-13 10:56:31,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21466 to 8253. [2022-12-13 10:56:31,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 8252 states have (on average 1.422927775084828) internal successors, (11742), 8252 states have internal predecessors, (11742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 11742 transitions. [2022-12-13 10:56:31,927 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 11742 transitions. Word has length 62 [2022-12-13 10:56:31,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:31,927 INFO L495 AbstractCegarLoop]: Abstraction has 8253 states and 11742 transitions. [2022-12-13 10:56:31,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 11742 transitions. [2022-12-13 10:56:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 10:56:31,929 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:31,929 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] [2022-12-13 10:56:31,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 10:56:31,929 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:31,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:31,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2010042985, now seen corresponding path program 1 times [2022-12-13 10:56:31,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:31,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053135250] [2022-12-13 10:56:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:31,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:32,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:32,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:32,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053135250] [2022-12-13 10:56:32,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053135250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:32,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:32,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 10:56:32,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091200357] [2022-12-13 10:56:32,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:32,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 10:56:32,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:32,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 10:56:32,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 10:56:32,132 INFO L87 Difference]: Start difference. First operand 8253 states and 11742 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:38,879 INFO L93 Difference]: Finished difference Result 28911 states and 41122 transitions. [2022-12-13 10:56:38,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 10:56:38,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-12-13 10:56:38,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:38,901 INFO L225 Difference]: With dead ends: 28911 [2022-12-13 10:56:38,901 INFO L226 Difference]: Without dead ends: 21808 [2022-12-13 10:56:38,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2022-12-13 10:56:38,908 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 2143 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:38,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 1309 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 10:56:38,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21808 states. [2022-12-13 10:56:41,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21808 to 8112. [2022-12-13 10:56:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8112 states, 8111 states have (on average 1.423622241400567) internal successors, (11547), 8111 states have internal predecessors, (11547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8112 states to 8112 states and 11547 transitions. [2022-12-13 10:56:41,095 INFO L78 Accepts]: Start accepts. Automaton has 8112 states and 11547 transitions. Word has length 62 [2022-12-13 10:56:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:41,095 INFO L495 AbstractCegarLoop]: Abstraction has 8112 states and 11547 transitions. [2022-12-13 10:56:41,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 8112 states and 11547 transitions. [2022-12-13 10:56:41,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 10:56:41,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:41,097 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] [2022-12-13 10:56:41,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 10:56:41,097 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:41,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1983119998, now seen corresponding path program 1 times [2022-12-13 10:56:41,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:41,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966108210] [2022-12-13 10:56:41,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:41,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:41,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:41,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966108210] [2022-12-13 10:56:41,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966108210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:41,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:41,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:56:41,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324466310] [2022-12-13 10:56:41,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:41,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:56:41,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:41,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:56:41,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:56:41,131 INFO L87 Difference]: Start difference. First operand 8112 states and 11547 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:43,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:43,223 INFO L93 Difference]: Finished difference Result 11169 states and 15856 transitions. [2022-12-13 10:56:43,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:56:43,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-12-13 10:56:43,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:43,230 INFO L225 Difference]: With dead ends: 11169 [2022-12-13 10:56:43,230 INFO L226 Difference]: Without dead ends: 7915 [2022-12-13 10:56:43,232 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 [2022-12-13 10:56:43,233 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 150 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:43,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 523 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:56:43,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2022-12-13 10:56:45,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 7913. [2022-12-13 10:56:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7913 states, 7912 states have (on average 1.397118301314459) internal successors, (11054), 7912 states have internal predecessors, (11054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:45,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7913 states to 7913 states and 11054 transitions. [2022-12-13 10:56:45,295 INFO L78 Accepts]: Start accepts. Automaton has 7913 states and 11054 transitions. Word has length 63 [2022-12-13 10:56:45,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:45,295 INFO L495 AbstractCegarLoop]: Abstraction has 7913 states and 11054 transitions. [2022-12-13 10:56:45,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:45,295 INFO L276 IsEmpty]: Start isEmpty. Operand 7913 states and 11054 transitions. [2022-12-13 10:56:45,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 10:56:45,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:45,296 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] [2022-12-13 10:56:45,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 10:56:45,297 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:45,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:45,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1051173576, now seen corresponding path program 1 times [2022-12-13 10:56:45,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:45,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135646305] [2022-12-13 10:56:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:45,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:45,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:45,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135646305] [2022-12-13 10:56:45,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135646305] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:45,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:45,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:56:45,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609777397] [2022-12-13 10:56:45,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:45,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:56:45,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:45,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:56:45,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:56:45,336 INFO L87 Difference]: Start difference. First operand 7913 states and 11054 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:47,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:47,220 INFO L93 Difference]: Finished difference Result 11329 states and 15821 transitions. [2022-12-13 10:56:47,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:56:47,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-12-13 10:56:47,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:47,226 INFO L225 Difference]: With dead ends: 11329 [2022-12-13 10:56:47,226 INFO L226 Difference]: Without dead ends: 7041 [2022-12-13 10:56:47,229 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 [2022-12-13 10:56:47,229 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 136 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:47,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 518 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:56:47,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7041 states. [2022-12-13 10:56:49,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7041 to 7039. [2022-12-13 10:56:49,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7039 states, 7038 states have (on average 1.3751065643648763) internal successors, (9678), 7038 states have internal predecessors, (9678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:49,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7039 states to 7039 states and 9678 transitions. [2022-12-13 10:56:49,073 INFO L78 Accepts]: Start accepts. Automaton has 7039 states and 9678 transitions. Word has length 63 [2022-12-13 10:56:49,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:49,073 INFO L495 AbstractCegarLoop]: Abstraction has 7039 states and 9678 transitions. [2022-12-13 10:56:49,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:49,073 INFO L276 IsEmpty]: Start isEmpty. Operand 7039 states and 9678 transitions. [2022-12-13 10:56:49,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 10:56:49,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:49,075 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] [2022-12-13 10:56:49,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 10:56:49,075 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:49,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:49,075 INFO L85 PathProgramCache]: Analyzing trace with hash -125701859, now seen corresponding path program 1 times [2022-12-13 10:56:49,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:49,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195078296] [2022-12-13 10:56:49,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:49,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:49,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:49,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195078296] [2022-12-13 10:56:49,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195078296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:49,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:49,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:56:49,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088027554] [2022-12-13 10:56:49,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:49,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:56:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:49,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:56:49,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:56:49,103 INFO L87 Difference]: Start difference. First operand 7039 states and 9678 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:50,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:50,506 INFO L93 Difference]: Finished difference Result 9423 states and 12952 transitions. [2022-12-13 10:56:50,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:56:50,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-12-13 10:56:50,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:50,511 INFO L225 Difference]: With dead ends: 9423 [2022-12-13 10:56:50,511 INFO L226 Difference]: Without dead ends: 5436 [2022-12-13 10:56:50,514 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 [2022-12-13 10:56:50,514 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 148 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:50,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 529 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:56:50,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2022-12-13 10:56:51,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5434. [2022-12-13 10:56:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 1.3519234308853303) internal successors, (7345), 5433 states have internal predecessors, (7345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:51,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 7345 transitions. [2022-12-13 10:56:51,922 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 7345 transitions. Word has length 63 [2022-12-13 10:56:51,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:51,922 INFO L495 AbstractCegarLoop]: Abstraction has 5434 states and 7345 transitions. [2022-12-13 10:56:51,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:51,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 7345 transitions. [2022-12-13 10:56:51,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 10:56:51,924 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:51,924 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] [2022-12-13 10:56:51,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 10:56:51,924 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:51,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:51,924 INFO L85 PathProgramCache]: Analyzing trace with hash 666404545, now seen corresponding path program 1 times [2022-12-13 10:56:51,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:51,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604341286] [2022-12-13 10:56:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:51,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:51,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:51,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:51,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604341286] [2022-12-13 10:56:51,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604341286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:51,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:51,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:56:51,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006013708] [2022-12-13 10:56:51,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:51,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:56:51,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:51,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:56:51,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:56:51,948 INFO L87 Difference]: Start difference. First operand 5434 states and 7345 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:56:53,926 INFO L93 Difference]: Finished difference Result 10138 states and 13774 transitions. [2022-12-13 10:56:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:56:53,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-12-13 10:56:53,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:56:53,933 INFO L225 Difference]: With dead ends: 10138 [2022-12-13 10:56:53,933 INFO L226 Difference]: Without dead ends: 7401 [2022-12-13 10:56:53,936 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 [2022-12-13 10:56:53,936 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 173 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:56:53,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 347 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:56:53,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7401 states. [2022-12-13 10:56:55,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7401 to 5217. [2022-12-13 10:56:55,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 1.3506518404907975) internal successors, (7045), 5216 states have internal predecessors, (7045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:55,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 7045 transitions. [2022-12-13 10:56:55,299 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 7045 transitions. Word has length 64 [2022-12-13 10:56:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:56:55,299 INFO L495 AbstractCegarLoop]: Abstraction has 5217 states and 7045 transitions. [2022-12-13 10:56:55,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:56:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 7045 transitions. [2022-12-13 10:56:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 10:56:55,301 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:56:55,301 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] [2022-12-13 10:56:55,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 10:56:55,301 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:56:55,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:56:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash 859970200, now seen corresponding path program 1 times [2022-12-13 10:56:55,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:56:55,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664945671] [2022-12-13 10:56:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:56:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:56:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:56:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:56:56,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:56:56,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664945671] [2022-12-13 10:56:56,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664945671] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:56:56,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:56:56,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-12-13 10:56:56,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381161140] [2022-12-13 10:56:56,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:56:56,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 10:56:56,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:56:56,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 10:56:56,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-12-13 10:56:56,192 INFO L87 Difference]: Start difference. First operand 5217 states and 7045 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:02,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:02,965 INFO L93 Difference]: Finished difference Result 10192 states and 13856 transitions. [2022-12-13 10:57:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 10:57:02,966 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-12-13 10:57:02,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:02,973 INFO L225 Difference]: With dead ends: 10192 [2022-12-13 10:57:02,973 INFO L226 Difference]: Without dead ends: 10076 [2022-12-13 10:57:02,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=393, Invalid=1863, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 10:57:02,975 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 2345 mSDsluCounter, 6220 mSDsCounter, 0 mSdLazyCounter, 3639 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2345 SdHoareTripleChecker+Valid, 6666 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:02,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2345 Valid, 6666 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3639 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 10:57:02,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2022-12-13 10:57:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 5217. [2022-12-13 10:57:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 1.3504601226993864) internal successors, (7044), 5216 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:04,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 7044 transitions. [2022-12-13 10:57:04,458 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 7044 transitions. Word has length 64 [2022-12-13 10:57:04,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:04,459 INFO L495 AbstractCegarLoop]: Abstraction has 5217 states and 7044 transitions. [2022-12-13 10:57:04,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:04,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 7044 transitions. [2022-12-13 10:57:04,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 10:57:04,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:04,460 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] [2022-12-13 10:57:04,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 10:57:04,460 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:04,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:04,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1948770272, now seen corresponding path program 1 times [2022-12-13 10:57:04,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:04,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421980482] [2022-12-13 10:57:04,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:04,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:05,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:05,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421980482] [2022-12-13 10:57:05,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421980482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:05,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:05,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-12-13 10:57:05,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371875324] [2022-12-13 10:57:05,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:05,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 10:57:05,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:05,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 10:57:05,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2022-12-13 10:57:05,261 INFO L87 Difference]: Start difference. First operand 5217 states and 7044 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:11,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:11,850 INFO L93 Difference]: Finished difference Result 9059 states and 12300 transitions. [2022-12-13 10:57:11,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 10:57:11,850 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-12-13 10:57:11,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:11,857 INFO L225 Difference]: With dead ends: 9059 [2022-12-13 10:57:11,857 INFO L226 Difference]: Without dead ends: 8943 [2022-12-13 10:57:11,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=440, Invalid=1816, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 10:57:11,859 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 1973 mSDsluCounter, 5807 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 6245 SdHoareTripleChecker+Invalid, 3590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:11,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 6245 Invalid, 3590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 10:57:11,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8943 states. [2022-12-13 10:57:13,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8943 to 5217. [2022-12-13 10:57:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5217 states, 5216 states have (on average 1.3502684049079754) internal successors, (7043), 5216 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 5217 states and 7043 transitions. [2022-12-13 10:57:13,385 INFO L78 Accepts]: Start accepts. Automaton has 5217 states and 7043 transitions. Word has length 64 [2022-12-13 10:57:13,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:13,385 INFO L495 AbstractCegarLoop]: Abstraction has 5217 states and 7043 transitions. [2022-12-13 10:57:13,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5217 states and 7043 transitions. [2022-12-13 10:57:13,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 10:57:13,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:13,386 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] [2022-12-13 10:57:13,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 10:57:13,386 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:13,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:13,387 INFO L85 PathProgramCache]: Analyzing trace with hash 682523932, now seen corresponding path program 1 times [2022-12-13 10:57:13,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:13,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95804601] [2022-12-13 10:57:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:13,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:14,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:14,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95804601] [2022-12-13 10:57:14,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95804601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:14,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:14,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-12-13 10:57:14,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592255656] [2022-12-13 10:57:14,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:14,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 10:57:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:14,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 10:57:14,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2022-12-13 10:57:14,014 INFO L87 Difference]: Start difference. First operand 5217 states and 7043 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:20,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:20,409 INFO L93 Difference]: Finished difference Result 8764 states and 11872 transitions. [2022-12-13 10:57:20,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 10:57:20,410 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-12-13 10:57:20,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:20,416 INFO L225 Difference]: With dead ends: 8764 [2022-12-13 10:57:20,416 INFO L226 Difference]: Without dead ends: 8648 [2022-12-13 10:57:20,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=353, Invalid=1539, Unknown=0, NotChecked=0, Total=1892 [2022-12-13 10:57:20,418 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 2490 mSDsluCounter, 6879 mSDsCounter, 0 mSdLazyCounter, 4255 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 7381 SdHoareTripleChecker+Invalid, 4269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:20,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 7381 Invalid, 4269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4255 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 10:57:20,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8648 states. [2022-12-13 10:57:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8648 to 5223. [2022-12-13 10:57:21,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5223 states, 5222 states have (on average 1.3500574492531596) internal successors, (7050), 5222 states have internal predecessors, (7050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:21,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 7050 transitions. [2022-12-13 10:57:21,976 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 7050 transitions. Word has length 64 [2022-12-13 10:57:21,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:21,976 INFO L495 AbstractCegarLoop]: Abstraction has 5223 states and 7050 transitions. [2022-12-13 10:57:21,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 7050 transitions. [2022-12-13 10:57:21,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 10:57:21,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:21,977 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] [2022-12-13 10:57:21,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 10:57:21,977 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:21,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:21,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1079669093, now seen corresponding path program 1 times [2022-12-13 10:57:21,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:21,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146410080] [2022-12-13 10:57:21,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:21,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:21,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:21,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146410080] [2022-12-13 10:57:21,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146410080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:21,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:21,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:57:21,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880832299] [2022-12-13 10:57:21,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:21,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:57:21,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:21,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:57:21,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:57:21,997 INFO L87 Difference]: Start difference. First operand 5223 states and 7050 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:24,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:24,211 INFO L93 Difference]: Finished difference Result 9704 states and 13175 transitions. [2022-12-13 10:57:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:57:24,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-12-13 10:57:24,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:24,217 INFO L225 Difference]: With dead ends: 9704 [2022-12-13 10:57:24,217 INFO L226 Difference]: Without dead ends: 7084 [2022-12-13 10:57:24,219 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 [2022-12-13 10:57:24,220 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 175 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:24,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 349 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:57:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7084 states. [2022-12-13 10:57:25,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7084 to 4951. [2022-12-13 10:57:25,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4951 states, 4950 states have (on average 1.3496969696969696) internal successors, (6681), 4950 states have internal predecessors, (6681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4951 states to 4951 states and 6681 transitions. [2022-12-13 10:57:25,711 INFO L78 Accepts]: Start accepts. Automaton has 4951 states and 6681 transitions. Word has length 64 [2022-12-13 10:57:25,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:25,712 INFO L495 AbstractCegarLoop]: Abstraction has 4951 states and 6681 transitions. [2022-12-13 10:57:25,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:25,712 INFO L276 IsEmpty]: Start isEmpty. Operand 4951 states and 6681 transitions. [2022-12-13 10:57:25,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 10:57:25,713 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:25,713 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] [2022-12-13 10:57:25,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 10:57:25,713 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:25,713 INFO L85 PathProgramCache]: Analyzing trace with hash 2017308149, now seen corresponding path program 1 times [2022-12-13 10:57:25,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:25,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52633106] [2022-12-13 10:57:25,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:25,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:25,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:25,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:25,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52633106] [2022-12-13 10:57:25,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52633106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:25,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:25,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:57:25,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898454120] [2022-12-13 10:57:25,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:25,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:57:25,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:25,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:57:25,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:57:25,731 INFO L87 Difference]: Start difference. First operand 4951 states and 6681 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:27,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:27,529 INFO L93 Difference]: Finished difference Result 7505 states and 10139 transitions. [2022-12-13 10:57:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:57:27,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2022-12-13 10:57:27,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:27,533 INFO L225 Difference]: With dead ends: 7505 [2022-12-13 10:57:27,533 INFO L226 Difference]: Without dead ends: 5705 [2022-12-13 10:57:27,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:57:27,535 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 163 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:27,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 335 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:57:27,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5705 states. [2022-12-13 10:57:28,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5705 to 4732. [2022-12-13 10:57:28,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4732 states, 4731 states have (on average 1.3496089621644474) internal successors, (6385), 4731 states have internal predecessors, (6385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4732 states to 4732 states and 6385 transitions. [2022-12-13 10:57:28,974 INFO L78 Accepts]: Start accepts. Automaton has 4732 states and 6385 transitions. Word has length 64 [2022-12-13 10:57:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:28,974 INFO L495 AbstractCegarLoop]: Abstraction has 4732 states and 6385 transitions. [2022-12-13 10:57:28,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 4732 states and 6385 transitions. [2022-12-13 10:57:28,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 10:57:28,975 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:28,975 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] [2022-12-13 10:57:28,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 10:57:28,975 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:28,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:28,975 INFO L85 PathProgramCache]: Analyzing trace with hash 144276108, now seen corresponding path program 1 times [2022-12-13 10:57:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:28,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621057621] [2022-12-13 10:57:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:28,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:29,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:29,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621057621] [2022-12-13 10:57:29,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621057621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:29,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:29,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 10:57:29,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725713089] [2022-12-13 10:57:29,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:29,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 10:57:29,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:29,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 10:57:29,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 10:57:29,304 INFO L87 Difference]: Start difference. First operand 4732 states and 6385 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 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) [2022-12-13 10:57:33,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:33,427 INFO L93 Difference]: Finished difference Result 9235 states and 12538 transitions. [2022-12-13 10:57:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 10:57:33,428 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 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 [2022-12-13 10:57:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:33,435 INFO L225 Difference]: With dead ends: 9235 [2022-12-13 10:57:33,436 INFO L226 Difference]: Without dead ends: 8559 [2022-12-13 10:57:33,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-12-13 10:57:33,437 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 1664 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:33,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 2543 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 10:57:33,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8559 states. [2022-12-13 10:57:35,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8559 to 4614. [2022-12-13 10:57:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 4613 states have (on average 1.3503143290700195) internal successors, (6229), 4613 states have internal predecessors, (6229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 6229 transitions. [2022-12-13 10:57:35,068 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 6229 transitions. Word has length 65 [2022-12-13 10:57:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:35,069 INFO L495 AbstractCegarLoop]: Abstraction has 4614 states and 6229 transitions. [2022-12-13 10:57:35,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 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) [2022-12-13 10:57:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 6229 transitions. [2022-12-13 10:57:35,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 10:57:35,070 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:35,070 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] [2022-12-13 10:57:35,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 10:57:35,070 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:35,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:35,070 INFO L85 PathProgramCache]: Analyzing trace with hash 402441546, now seen corresponding path program 1 times [2022-12-13 10:57:35,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:35,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356113717] [2022-12-13 10:57:35,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:35,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:35,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:35,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356113717] [2022-12-13 10:57:35,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356113717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:35,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:35,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-13 10:57:35,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468266910] [2022-12-13 10:57:35,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:35,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 10:57:35,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 10:57:35,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-12-13 10:57:35,525 INFO L87 Difference]: Start difference. First operand 4614 states and 6229 transitions. Second operand has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 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) [2022-12-13 10:57:42,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:42,311 INFO L93 Difference]: Finished difference Result 11051 states and 15042 transitions. [2022-12-13 10:57:42,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 10:57:42,312 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 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 [2022-12-13 10:57:42,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:42,321 INFO L225 Difference]: With dead ends: 11051 [2022-12-13 10:57:42,321 INFO L226 Difference]: Without dead ends: 10612 [2022-12-13 10:57:42,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=378, Invalid=1344, Unknown=0, NotChecked=0, Total=1722 [2022-12-13 10:57:42,323 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 2312 mSDsluCounter, 4499 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2312 SdHoareTripleChecker+Valid, 5187 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:42,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2312 Valid, 5187 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 10:57:42,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10612 states. [2022-12-13 10:57:44,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10612 to 4533. [2022-12-13 10:57:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4533 states, 4532 states have (on average 1.3506178287731685) internal successors, (6121), 4532 states have internal predecessors, (6121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:44,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4533 states to 4533 states and 6121 transitions. [2022-12-13 10:57:44,205 INFO L78 Accepts]: Start accepts. Automaton has 4533 states and 6121 transitions. Word has length 65 [2022-12-13 10:57:44,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:44,205 INFO L495 AbstractCegarLoop]: Abstraction has 4533 states and 6121 transitions. [2022-12-13 10:57:44,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.823529411764706) internal successors, (65), 17 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) [2022-12-13 10:57:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4533 states and 6121 transitions. [2022-12-13 10:57:44,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 10:57:44,206 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:44,206 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] [2022-12-13 10:57:44,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-12-13 10:57:44,207 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:44,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:44,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1563174538, now seen corresponding path program 1 times [2022-12-13 10:57:44,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:44,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597127994] [2022-12-13 10:57:44,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:44,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:44,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:44,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597127994] [2022-12-13 10:57:44,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597127994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:44,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:44,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 10:57:44,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225098223] [2022-12-13 10:57:44,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:44,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 10:57:44,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:44,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 10:57:44,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:57:44,273 INFO L87 Difference]: Start difference. First operand 4533 states and 6121 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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) [2022-12-13 10:57:46,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:46,084 INFO L93 Difference]: Finished difference Result 4539 states and 6124 transitions. [2022-12-13 10:57:46,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 10:57:46,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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 [2022-12-13 10:57:46,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:46,088 INFO L225 Difference]: With dead ends: 4539 [2022-12-13 10:57:46,088 INFO L226 Difference]: Without dead ends: 4096 [2022-12-13 10:57:46,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 10:57:46,089 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 564 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:46,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 649 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 10:57:46,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4096 states. [2022-12-13 10:57:47,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4096 to 4092. [2022-12-13 10:57:47,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4092 states, 4091 states have (on average 1.3551698851136642) internal successors, (5544), 4091 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:47,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4092 states to 4092 states and 5544 transitions. [2022-12-13 10:57:47,790 INFO L78 Accepts]: Start accepts. Automaton has 4092 states and 5544 transitions. Word has length 69 [2022-12-13 10:57:47,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:47,790 INFO L495 AbstractCegarLoop]: Abstraction has 4092 states and 5544 transitions. [2022-12-13 10:57:47,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 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) [2022-12-13 10:57:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4092 states and 5544 transitions. [2022-12-13 10:57:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-12-13 10:57:47,792 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:47,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:57:47,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 10:57:47,792 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:47,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:47,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1535111263, now seen corresponding path program 1 times [2022-12-13 10:57:47,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:47,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105413558] [2022-12-13 10:57:47,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:47,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:47,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:47,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105413558] [2022-12-13 10:57:47,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105413558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:47,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:47,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:57:47,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502412746] [2022-12-13 10:57:47,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:47,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:57:47,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:57:47,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:57:47,836 INFO L87 Difference]: Start difference. First operand 4092 states and 5544 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:51,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:51,085 INFO L93 Difference]: Finished difference Result 10743 states and 14661 transitions. [2022-12-13 10:57:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:57:51,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-12-13 10:57:51,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:51,092 INFO L225 Difference]: With dead ends: 10743 [2022-12-13 10:57:51,092 INFO L226 Difference]: Without dead ends: 7144 [2022-12-13 10:57:51,094 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 [2022-12-13 10:57:51,095 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 115 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:57:51,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 430 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:57:51,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7144 states. [2022-12-13 10:57:54,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7144 to 6674. [2022-12-13 10:57:54,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6674 states, 6673 states have (on average 1.3484190019481492) internal successors, (8998), 6673 states have internal predecessors, (8998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:54,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6674 states to 6674 states and 8998 transitions. [2022-12-13 10:57:54,009 INFO L78 Accepts]: Start accepts. Automaton has 6674 states and 8998 transitions. Word has length 72 [2022-12-13 10:57:54,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:57:54,010 INFO L495 AbstractCegarLoop]: Abstraction has 6674 states and 8998 transitions. [2022-12-13 10:57:54,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 6674 states and 8998 transitions. [2022-12-13 10:57:54,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-12-13 10:57:54,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:57:54,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:57:54,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 10:57:54,011 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:57:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:57:54,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1480821562, now seen corresponding path program 1 times [2022-12-13 10:57:54,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:57:54,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320575265] [2022-12-13 10:57:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:57:54,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:57:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:57:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:57:54,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:57:54,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320575265] [2022-12-13 10:57:54,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320575265] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:57:54,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:57:54,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:57:54,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048428354] [2022-12-13 10:57:54,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:57:54,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:57:54,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:57:54,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:57:54,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:57:54,053 INFO L87 Difference]: Start difference. First operand 6674 states and 8998 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:57:59,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:57:59,613 INFO L93 Difference]: Finished difference Result 18382 states and 24898 transitions. [2022-12-13 10:57:59,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:57:59,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-12-13 10:57:59,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:57:59,623 INFO L225 Difference]: With dead ends: 18382 [2022-12-13 10:57:59,623 INFO L226 Difference]: Without dead ends: 12218 [2022-12-13 10:57:59,627 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 [2022-12-13 10:57:59,628 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 105 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 422 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 [2022-12-13 10:57:59,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 422 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:57:59,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12218 states. [2022-12-13 10:58:04,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12218 to 11312. [2022-12-13 10:58:04,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11312 states, 11311 states have (on average 1.343736186013615) internal successors, (15199), 11311 states have internal predecessors, (15199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:58:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11312 states to 11312 states and 15199 transitions. [2022-12-13 10:58:04,715 INFO L78 Accepts]: Start accepts. Automaton has 11312 states and 15199 transitions. Word has length 73 [2022-12-13 10:58:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:58:04,716 INFO L495 AbstractCegarLoop]: Abstraction has 11312 states and 15199 transitions. [2022-12-13 10:58:04,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:58:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 11312 states and 15199 transitions. [2022-12-13 10:58:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 10:58:04,717 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:58:04,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:58:04,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 10:58:04,717 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:58:04,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:58:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1423402598, now seen corresponding path program 1 times [2022-12-13 10:58:04,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:58:04,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858993375] [2022-12-13 10:58:04,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:58:04,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:58:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:58:04,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:58:04,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:58:04,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858993375] [2022-12-13 10:58:04,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858993375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:58:04,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:58:04,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:58:04,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593963297] [2022-12-13 10:58:04,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:58:04,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:58:04,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:58:04,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:58:04,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:58:04,759 INFO L87 Difference]: Start difference. First operand 11312 states and 15199 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:58:14,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:58:14,426 INFO L93 Difference]: Finished difference Result 31676 states and 42549 transitions. [2022-12-13 10:58:14,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:58:14,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2022-12-13 10:58:14,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:58:14,444 INFO L225 Difference]: With dead ends: 31676 [2022-12-13 10:58:14,444 INFO L226 Difference]: Without dead ends: 20874 [2022-12-13 10:58:14,450 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 [2022-12-13 10:58:14,451 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 95 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 412 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 [2022-12-13 10:58:14,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 412 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:58:14,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20874 states. [2022-12-13 10:58:23,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20874 to 19064. [2022-12-13 10:58:23,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19064 states, 19063 states have (on average 1.3312175418349683) internal successors, (25377), 19063 states have internal predecessors, (25377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:58:23,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19064 states to 19064 states and 25377 transitions. [2022-12-13 10:58:23,277 INFO L78 Accepts]: Start accepts. Automaton has 19064 states and 25377 transitions. Word has length 74 [2022-12-13 10:58:23,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:58:23,277 INFO L495 AbstractCegarLoop]: Abstraction has 19064 states and 25377 transitions. [2022-12-13 10:58:23,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:58:23,277 INFO L276 IsEmpty]: Start isEmpty. Operand 19064 states and 25377 transitions. [2022-12-13 10:58:23,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-12-13 10:58:23,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:58:23,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:58:23,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 10:58:23,279 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:58:23,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:58:23,279 INFO L85 PathProgramCache]: Analyzing trace with hash 2071973989, now seen corresponding path program 1 times [2022-12-13 10:58:23,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:58:23,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300703548] [2022-12-13 10:58:23,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:58:23,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:58:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:58:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:58:23,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:58:23,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300703548] [2022-12-13 10:58:23,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300703548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:58:23,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:58:23,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 10:58:23,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607672744] [2022-12-13 10:58:23,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:58:23,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 10:58:23,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:58:23,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 10:58:23,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 10:58:23,359 INFO L87 Difference]: Start difference. First operand 19064 states and 25377 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:58:44,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:58:44,360 INFO L93 Difference]: Finished difference Result 40814 states and 53487 transitions. [2022-12-13 10:58:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 10:58:44,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-12-13 10:58:44,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:58:44,399 INFO L225 Difference]: With dead ends: 40814 [2022-12-13 10:58:44,399 INFO L226 Difference]: Without dead ends: 40812 [2022-12-13 10:58:44,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-13 10:58:44,407 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 333 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:58:44,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 989 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:58:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40812 states. [2022-12-13 10:58:55,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40812 to 21032. [2022-12-13 10:58:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21032 states, 21031 states have (on average 1.300223479625315) internal successors, (27345), 21031 states have internal predecessors, (27345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:58:55,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21032 states to 21032 states and 27345 transitions. [2022-12-13 10:58:55,249 INFO L78 Accepts]: Start accepts. Automaton has 21032 states and 27345 transitions. Word has length 77 [2022-12-13 10:58:55,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:58:55,249 INFO L495 AbstractCegarLoop]: Abstraction has 21032 states and 27345 transitions. [2022-12-13 10:58:55,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:58:55,249 INFO L276 IsEmpty]: Start isEmpty. Operand 21032 states and 27345 transitions. [2022-12-13 10:58:55,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-13 10:58:55,250 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:58:55,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:58:55,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 10:58:55,251 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:58:55,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:58:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1914492299, now seen corresponding path program 1 times [2022-12-13 10:58:55,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:58:55,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991799379] [2022-12-13 10:58:55,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:58:55,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:58:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:58:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:58:55,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:58:55,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991799379] [2022-12-13 10:58:55,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991799379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 10:58:55,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 10:58:55,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 10:58:55,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157391975] [2022-12-13 10:58:55,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 10:58:55,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 10:58:55,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:58:55,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 10:58:55,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 10:58:55,276 INFO L87 Difference]: Start difference. First operand 21032 states and 27345 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:59:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 10:59:11,434 INFO L93 Difference]: Finished difference Result 51852 states and 67059 transitions. [2022-12-13 10:59:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 10:59:11,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2022-12-13 10:59:11,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 10:59:11,466 INFO L225 Difference]: With dead ends: 51852 [2022-12-13 10:59:11,467 INFO L226 Difference]: Without dead ends: 31330 [2022-12-13 10:59:11,480 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 [2022-12-13 10:59:11,480 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 131 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 10:59:11,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 10:59:11,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31330 states. [2022-12-13 10:59:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31330 to 31328. [2022-12-13 10:59:27,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31328 states, 31327 states have (on average 1.2754812142879943) internal successors, (39957), 31327 states have internal predecessors, (39957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:59:27,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31328 states to 31328 states and 39957 transitions. [2022-12-13 10:59:27,489 INFO L78 Accepts]: Start accepts. Automaton has 31328 states and 39957 transitions. Word has length 78 [2022-12-13 10:59:27,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 10:59:27,489 INFO L495 AbstractCegarLoop]: Abstraction has 31328 states and 39957 transitions. [2022-12-13 10:59:27,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 10:59:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 31328 states and 39957 transitions. [2022-12-13 10:59:27,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 10:59:27,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 10:59:27,493 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 10:59:27,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 10:59:27,494 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 10:59:27,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 10:59:27,494 INFO L85 PathProgramCache]: Analyzing trace with hash 660908331, now seen corresponding path program 1 times [2022-12-13 10:59:27,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 10:59:27,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116752851] [2022-12-13 10:59:27,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:27,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 10:59:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:59:27,641 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:59:27,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 10:59:27,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116752851] [2022-12-13 10:59:27,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116752851] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 10:59:27,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621073218] [2022-12-13 10:59:27,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 10:59:27,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 10:59:27,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 10:59:27,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 10:59:27,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 10:59:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 10:59:27,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 10:59:27,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 10:59:28,789 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:59:28,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 10:59:29,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 10:59:29,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621073218] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 10:59:29,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 10:59:29,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 31 [2022-12-13 10:59:29,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459987831] [2022-12-13 10:59:29,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 10:59:29,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-13 10:59:29,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 10:59:29,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-13 10:59:29,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=878, Unknown=0, NotChecked=0, Total=992 [2022-12-13 10:59:29,619 INFO L87 Difference]: Start difference. First operand 31328 states and 39957 transitions. Second operand has 32 states, 32 states have (on average 8.0) internal successors, (256), 31 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:04:00,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:04:00,650 INFO L93 Difference]: Finished difference Result 383200 states and 477581 transitions. [2022-12-13 11:04:00,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-12-13 11:04:00,651 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.0) internal successors, (256), 31 states have internal predecessors, (256), 0 states have call successors, (0), 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 97 [2022-12-13 11:04:00,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:04:01,262 INFO L225 Difference]: With dead ends: 383200 [2022-12-13 11:04:01,262 INFO L226 Difference]: Without dead ends: 366590 [2022-12-13 11:04:01,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 170 SyntacticMatches, 1 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45370 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=15003, Invalid=92253, Unknown=0, NotChecked=0, Total=107256 [2022-12-13 11:04:01,376 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 10430 mSDsluCounter, 11406 mSDsCounter, 0 mSdLazyCounter, 11183 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10430 SdHoareTripleChecker+Valid, 11829 SdHoareTripleChecker+Invalid, 11302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 11183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:04:01,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10430 Valid, 11829 Invalid, 11302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 11183 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-12-13 11:04:01,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366590 states. [2022-12-13 11:04:25,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366590 to 31758. [2022-12-13 11:04:25,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31758 states, 31757 states have (on average 1.2749315111628932) internal successors, (40488), 31757 states have internal predecessors, (40488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:04:25,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31758 states to 31758 states and 40488 transitions. [2022-12-13 11:04:25,375 INFO L78 Accepts]: Start accepts. Automaton has 31758 states and 40488 transitions. Word has length 97 [2022-12-13 11:04:25,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:04:25,375 INFO L495 AbstractCegarLoop]: Abstraction has 31758 states and 40488 transitions. [2022-12-13 11:04:25,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.0) internal successors, (256), 31 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:04:25,376 INFO L276 IsEmpty]: Start isEmpty. Operand 31758 states and 40488 transitions. [2022-12-13 11:04:25,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 11:04:25,379 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:04:25,380 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:04:25,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:04:25,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-12-13 11:04:25,581 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:04:25,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:04:25,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1181943881, now seen corresponding path program 1 times [2022-12-13 11:04:25,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:04:25,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801930312] [2022-12-13 11:04:25,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:04:25,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:04:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:04:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:04:25,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:04:25,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801930312] [2022-12-13 11:04:25,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801930312] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:04:25,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964555652] [2022-12-13 11:04:25,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:04:25,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:04:25,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:04:25,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:04:25,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef685c5-dbec-4503-8e56-9273ba9903c8/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:04:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:04:25,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 11:04:25,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:04:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:04:26,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:04:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:04:27,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964555652] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:04:27,464 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:04:27,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 31 [2022-12-13 11:04:27,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603770658] [2022-12-13 11:04:27,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:04:27,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-13 11:04:27,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:04:27,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-13 11:04:27,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=878, Unknown=0, NotChecked=0, Total=992 [2022-12-13 11:04:27,466 INFO L87 Difference]: Start difference. First operand 31758 states and 40488 transitions. Second operand has 32 states, 32 states have (on average 8.125) internal successors, (260), 31 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:08:42,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:08:42,499 INFO L93 Difference]: Finished difference Result 319883 states and 401027 transitions. [2022-12-13 11:08:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 281 states. [2022-12-13 11:08:42,500 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.125) internal successors, (260), 31 states have internal predecessors, (260), 0 states have call successors, (0), 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 97 [2022-12-13 11:08:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:08:43,043 INFO L225 Difference]: With dead ends: 319883 [2022-12-13 11:08:43,043 INFO L226 Difference]: Without dead ends: 303729 [2022-12-13 11:08:43,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 170 SyntacticMatches, 1 SemanticMatches, 309 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41914 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=15186, Invalid=81224, Unknown=0, NotChecked=0, Total=96410 [2022-12-13 11:08:43,119 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 8905 mSDsluCounter, 8610 mSDsCounter, 0 mSdLazyCounter, 8705 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8905 SdHoareTripleChecker+Valid, 9043 SdHoareTripleChecker+Invalid, 8830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 8705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-13 11:08:43,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8905 Valid, 9043 Invalid, 8830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [125 Valid, 8705 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-12-13 11:08:43,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303729 states.