./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+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 532121231e517c5ccd98a51763e37538cc4af219147e372fd62404dc9cc0f64d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:01:42,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:01:42,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:01:42,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:01:42,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:01:42,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:01:42,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:01:42,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:01:42,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:01:42,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:01:42,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:01:42,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:01:42,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:01:42,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:01:42,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:01:42,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:01:42,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:01:42,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:01:42,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:01:42,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:01:42,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:01:42,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:01:42,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:01:42,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:01:42,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:01:42,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:01:42,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:01:42,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:01:42,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:01:42,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:01:42,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:01:42,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:01:42,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:01:42,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:01:42,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:01:42,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:01:42,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:01:42,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:01:42,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:01:42,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:01:42,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:01:42,701 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:01:42,725 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:01:42,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:01:42,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:01:42,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:01:42,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:01:42,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:01:42,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:01:42,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:01:42,729 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:01:42,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:01:42,730 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:01:42,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:01:42,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:01:42,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:01:42,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:01:42,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:01:42,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:01:42,732 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:01:42,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:01:42,733 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:01:42,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:01:42,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:01:42,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:01:42,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:01:42,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:42,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:01:42,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:01:42,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:01:42,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:01:42,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:01:42,736 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:01:42,736 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:01:42,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:01:42,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 532121231e517c5ccd98a51763e37538cc4af219147e372fd62404dc9cc0f64d [2022-11-16 12:01:43,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:01:43,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:01:43,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:01:43,070 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:01:43,071 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:01:43,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2022-11-16 12:01:43,165 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/data/20a70e804/7083b06a7f2f4d959dfe7ed6754154cc/FLAG502e406a3 [2022-11-16 12:01:43,895 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:01:43,896 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2022-11-16 12:01:43,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/data/20a70e804/7083b06a7f2f4d959dfe7ed6754154cc/FLAG502e406a3 [2022-11-16 12:01:43,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/data/20a70e804/7083b06a7f2f4d959dfe7ed6754154cc [2022-11-16 12:01:43,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:01:43,975 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:01:43,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:43,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:01:43,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:01:43,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:43" (1/1) ... [2022-11-16 12:01:43,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c18362b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:43, skipping insertion in model container [2022-11-16 12:01:43,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:43" (1/1) ... [2022-11-16 12:01:43,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:01:44,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:01:44,584 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8426,8439] [2022-11-16 12:01:44,662 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12993,13006] [2022-11-16 12:01:44,721 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20763,20776] [2022-11-16 12:01:44,759 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27894,27907] [2022-11-16 12:01:44,872 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49218,49231] [2022-11-16 12:01:45,010 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80449,80462] [2022-11-16 12:01:45,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:45,317 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:01:45,362 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8426,8439] [2022-11-16 12:01:45,382 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12993,13006] [2022-11-16 12:01:45,401 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20763,20776] [2022-11-16 12:01:45,425 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27894,27907] [2022-11-16 12:01:45,470 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49218,49231] [2022-11-16 12:01:45,533 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80449,80462] [2022-11-16 12:01:45,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:45,675 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:01:45,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45 WrapperNode [2022-11-16 12:01:45,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:45,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:45,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:01:45,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:01:45,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:45,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:45,890 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5971 [2022-11-16 12:01:45,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:45,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:01:45,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:01:45,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:01:45,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:45,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:45,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:45,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:46,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:46,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:46,052 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:46,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:46,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:01:46,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:01:46,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:01:46,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:01:46,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (1/1) ... [2022-11-16 12:01:46,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:46,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:46,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:01:46,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ea391e3-bace-4ff7-84e0-a1ee09609c04/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:01:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:01:46,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:01:46,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:01:46,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:01:46,596 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:01:46,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:01:49,840 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:01:49,868 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:01:49,868 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:01:49,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:49 BoogieIcfgContainer [2022-11-16 12:01:49,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:01:49,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:01:49,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:01:49,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:01:49,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:43" (1/3) ... [2022-11-16 12:01:49,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562f08cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:49, skipping insertion in model container [2022-11-16 12:01:49,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:45" (2/3) ... [2022-11-16 12:01:49,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562f08cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:49, skipping insertion in model container [2022-11-16 12:01:49,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:49" (3/3) ... [2022-11-16 12:01:49,885 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2022-11-16 12:01:49,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:01:49,907 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-16 12:01:50,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:01:50,078 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;@34395edd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:01:50,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-16 12:01:50,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 1283 states have (on average 1.7716289945440373) internal successors, (2273), 1289 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-16 12:01:50,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:50,130 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] [2022-11-16 12:01:50,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:01:50,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:50,139 INFO L85 PathProgramCache]: Analyzing trace with hash 692081489, now seen corresponding path program 1 times [2022-11-16 12:01:50,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:50,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425112229] [2022-11-16 12:01:50,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:50,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:50,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:50,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425112229] [2022-11-16 12:01:50,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425112229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:50,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:50,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:01:50,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710031620] [2022-11-16 12:01:50,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:50,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:01:50,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:01:50,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:01:50,888 INFO L87 Difference]: Start difference. First operand has 1290 states, 1283 states have (on average 1.7716289945440373) internal successors, (2273), 1289 states have internal predecessors, (2273), 0 states have call successors, (0), 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 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:52,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:52,933 INFO L93 Difference]: Finished difference Result 2522 states and 4334 transitions. [2022-11-16 12:01:52,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:01:52,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-11-16 12:01:52,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:52,965 INFO L225 Difference]: With dead ends: 2522 [2022-11-16 12:01:52,965 INFO L226 Difference]: Without dead ends: 1598 [2022-11-16 12:01:52,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:01:52,981 INFO L413 NwaCegarLoop]: 1054 mSDtfsCounter, 7094 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7094 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:52,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7094 Valid, 1564 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:01:53,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-11-16 12:01:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1592. [2022-11-16 12:01:53,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1586 states have (on average 1.3076923076923077) internal successors, (2074), 1591 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:53,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2074 transitions. [2022-11-16 12:01:53,169 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2074 transitions. Word has length 52 [2022-11-16 12:01:53,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:53,170 INFO L495 AbstractCegarLoop]: Abstraction has 1592 states and 2074 transitions. [2022-11-16 12:01:53,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:53,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2074 transitions. [2022-11-16 12:01:53,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-16 12:01:53,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:53,174 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] [2022-11-16 12:01:53,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:01:53,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:01:53,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash -736362272, now seen corresponding path program 1 times [2022-11-16 12:01:53,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:53,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149720066] [2022-11-16 12:01:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:53,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:53,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:53,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:53,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149720066] [2022-11-16 12:01:53,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149720066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:53,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:53,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:01:53,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947635150] [2022-11-16 12:01:53,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:53,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:01:53,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:53,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:01:53,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:01:53,464 INFO L87 Difference]: Start difference. First operand 1592 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2022-11-16 12:01:54,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:54,746 INFO L93 Difference]: Finished difference Result 3210 states and 4213 transitions. [2022-11-16 12:01:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:01:54,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 [2022-11-16 12:01:54,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:54,757 INFO L225 Difference]: With dead ends: 3210 [2022-11-16 12:01:54,757 INFO L226 Difference]: Without dead ends: 2216 [2022-11-16 12:01:54,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:01:54,760 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 4976 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:54,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 1044 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:01:54,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2022-11-16 12:01:54,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2202. [2022-11-16 12:01:54,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2202 states, 2196 states have (on average 1.3183060109289617) internal successors, (2895), 2201 states have internal predecessors, (2895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2202 states to 2202 states and 2895 transitions. [2022-11-16 12:01:54,945 INFO L78 Accepts]: Start accepts. Automaton has 2202 states and 2895 transitions. Word has length 53 [2022-11-16 12:01:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:54,946 INFO L495 AbstractCegarLoop]: Abstraction has 2202 states and 2895 transitions. [2022-11-16 12:01:54,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2022-11-16 12:01:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2202 states and 2895 transitions. [2022-11-16 12:01:54,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-16 12:01:54,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:54,951 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] [2022-11-16 12:01:54,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:01:54,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:01:54,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:54,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1386389066, now seen corresponding path program 1 times [2022-11-16 12:01:54,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:54,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264619878] [2022-11-16 12:01:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:54,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:55,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:55,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:55,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264619878] [2022-11-16 12:01:55,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264619878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:55,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:55,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:01:55,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137297316] [2022-11-16 12:01:55,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:55,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:01:55,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:55,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:01:55,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:01:55,112 INFO L87 Difference]: Start difference. First operand 2202 states and 2895 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2022-11-16 12:01:56,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:56,381 INFO L93 Difference]: Finished difference Result 4509 states and 5999 transitions. [2022-11-16 12:01:56,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:01:56,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 [2022-11-16 12:01:56,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:56,394 INFO L225 Difference]: With dead ends: 4509 [2022-11-16 12:01:56,394 INFO L226 Difference]: Without dead ends: 3078 [2022-11-16 12:01:56,397 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 [2022-11-16 12:01:56,398 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 4462 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:56,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 932 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:01:56,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3078 states. [2022-11-16 12:01:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3078 to 3068. [2022-11-16 12:01:56,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3062 states have (on average 1.3229915088177662) internal successors, (4051), 3067 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:56,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 4051 transitions. [2022-11-16 12:01:56,603 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 4051 transitions. Word has length 53 [2022-11-16 12:01:56,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:56,604 INFO L495 AbstractCegarLoop]: Abstraction has 3068 states and 4051 transitions. [2022-11-16 12:01:56,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2022-11-16 12:01:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 4051 transitions. [2022-11-16 12:01:56,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-16 12:01:56,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:56,609 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] [2022-11-16 12:01:56,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:01:56,609 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:01:56,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:56,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1763239895, now seen corresponding path program 1 times [2022-11-16 12:01:56,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:56,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358145352] [2022-11-16 12:01:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:56,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:57,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:57,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358145352] [2022-11-16 12:01:57,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358145352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:57,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:57,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:01:57,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442017149] [2022-11-16 12:01:57,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:57,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:01:57,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:57,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:01:57,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:01:57,039 INFO L87 Difference]: Start difference. First operand 3068 states and 4051 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:59,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:59,457 INFO L93 Difference]: Finished difference Result 6217 states and 8707 transitions. [2022-11-16 12:01:59,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:01:59,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-11-16 12:01:59,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:59,477 INFO L225 Difference]: With dead ends: 6217 [2022-11-16 12:01:59,477 INFO L226 Difference]: Without dead ends: 5513 [2022-11-16 12:01:59,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:01:59,491 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 4689 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4689 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:59,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4689 Valid, 2849 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:01:59,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5513 states. [2022-11-16 12:01:59,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5513 to 3068. [2022-11-16 12:01:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3062 states have (on average 1.3226649248856956) internal successors, (4050), 3067 states have internal predecessors, (4050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 4050 transitions. [2022-11-16 12:01:59,760 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 4050 transitions. Word has length 55 [2022-11-16 12:01:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:59,761 INFO L495 AbstractCegarLoop]: Abstraction has 3068 states and 4050 transitions. [2022-11-16 12:01:59,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 4050 transitions. [2022-11-16 12:01:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-16 12:01:59,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:59,764 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] [2022-11-16 12:01:59,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:01:59,765 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:01:59,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:59,765 INFO L85 PathProgramCache]: Analyzing trace with hash 622296368, now seen corresponding path program 1 times [2022-11-16 12:01:59,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:59,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118189631] [2022-11-16 12:01:59,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:59,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:00,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:00,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118189631] [2022-11-16 12:02:00,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118189631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:00,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:00,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:02:00,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993854772] [2022-11-16 12:02:00,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:00,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:02:00,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:00,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:02:00,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:02:00,239 INFO L87 Difference]: Start difference. First operand 3068 states and 4050 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:03,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:03,769 INFO L93 Difference]: Finished difference Result 6021 states and 8276 transitions. [2022-11-16 12:02:03,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:02:03,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-11-16 12:02:03,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:03,789 INFO L225 Difference]: With dead ends: 6021 [2022-11-16 12:02:03,789 INFO L226 Difference]: Without dead ends: 5451 [2022-11-16 12:02:03,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:02:03,793 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 5663 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5663 SdHoareTripleChecker+Valid, 3812 SdHoareTripleChecker+Invalid, 3863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:03,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5663 Valid, 3812 Invalid, 3863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3806 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 12:02:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5451 states. [2022-11-16 12:02:04,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5451 to 3068. [2022-11-16 12:02:04,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3062 states have (on average 1.3223383409536251) internal successors, (4049), 3067 states have internal predecessors, (4049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:04,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 4049 transitions. [2022-11-16 12:02:04,147 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 4049 transitions. Word has length 55 [2022-11-16 12:02:04,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:04,149 INFO L495 AbstractCegarLoop]: Abstraction has 3068 states and 4049 transitions. [2022-11-16 12:02:04,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:04,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 4049 transitions. [2022-11-16 12:02:04,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-16 12:02:04,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:04,158 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] [2022-11-16 12:02:04,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:02:04,159 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:04,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:04,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1268497001, now seen corresponding path program 1 times [2022-11-16 12:02:04,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:04,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616758967] [2022-11-16 12:02:04,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:04,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:04,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:04,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:04,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616758967] [2022-11-16 12:02:04,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616758967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:04,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:04,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:02:04,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699820438] [2022-11-16 12:02:04,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:04,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:02:04,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:04,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:02:04,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:02:04,595 INFO L87 Difference]: Start difference. First operand 3068 states and 4049 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:07,521 INFO L93 Difference]: Finished difference Result 5707 states and 7871 transitions. [2022-11-16 12:02:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:02:07,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-11-16 12:02:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:07,540 INFO L225 Difference]: With dead ends: 5707 [2022-11-16 12:02:07,540 INFO L226 Difference]: Without dead ends: 5701 [2022-11-16 12:02:07,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:02:07,543 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 5634 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 2808 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5634 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 2845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:07,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5634 Valid, 3251 Invalid, 2845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2808 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 12:02:07,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2022-11-16 12:02:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 3068. [2022-11-16 12:02:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3062 states have (on average 1.3220117570215546) internal successors, (4048), 3067 states have internal predecessors, (4048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:07,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 4048 transitions. [2022-11-16 12:02:07,880 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 4048 transitions. Word has length 55 [2022-11-16 12:02:07,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:07,880 INFO L495 AbstractCegarLoop]: Abstraction has 3068 states and 4048 transitions. [2022-11-16 12:02:07,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:07,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 4048 transitions. [2022-11-16 12:02:07,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 12:02:07,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:07,884 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] [2022-11-16 12:02:07,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:02:07,884 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:07,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:07,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1662572980, now seen corresponding path program 1 times [2022-11-16 12:02:07,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:07,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848154806] [2022-11-16 12:02:07,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:07,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:07,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:07,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848154806] [2022-11-16 12:02:07,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848154806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:07,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:07,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:02:07,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077074347] [2022-11-16 12:02:07,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:07,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:02:07,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:07,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:02:07,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:07,980 INFO L87 Difference]: Start difference. First operand 3068 states and 4048 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:08,525 INFO L93 Difference]: Finished difference Result 4024 states and 5497 transitions. [2022-11-16 12:02:08,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:02:08,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-11-16 12:02:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:08,551 INFO L225 Difference]: With dead ends: 4024 [2022-11-16 12:02:08,558 INFO L226 Difference]: Without dead ends: 3087 [2022-11-16 12:02:08,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:08,561 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 579 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:08,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1790 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2022-11-16 12:02:08,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3085. [2022-11-16 12:02:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 3079 states have (on average 1.3380967846703475) internal successors, (4120), 3084 states have internal predecessors, (4120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:08,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 4120 transitions. [2022-11-16 12:02:08,988 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 4120 transitions. Word has length 56 [2022-11-16 12:02:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:08,989 INFO L495 AbstractCegarLoop]: Abstraction has 3085 states and 4120 transitions. [2022-11-16 12:02:08,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:08,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 4120 transitions. [2022-11-16 12:02:08,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 12:02:08,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:08,992 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] [2022-11-16 12:02:08,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:02:08,993 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:08,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:08,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1775531576, now seen corresponding path program 1 times [2022-11-16 12:02:08,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:08,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179585470] [2022-11-16 12:02:08,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:08,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:09,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:09,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:09,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179585470] [2022-11-16 12:02:09,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179585470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:09,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:09,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:02:09,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700695144] [2022-11-16 12:02:09,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:09,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:02:09,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:09,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:02:09,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:09,088 INFO L87 Difference]: Start difference. First operand 3085 states and 4120 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:09,633 INFO L93 Difference]: Finished difference Result 4759 states and 6655 transitions. [2022-11-16 12:02:09,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:02:09,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-11-16 12:02:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:09,640 INFO L225 Difference]: With dead ends: 4759 [2022-11-16 12:02:09,641 INFO L226 Difference]: Without dead ends: 3515 [2022-11-16 12:02:09,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:09,644 INFO L413 NwaCegarLoop]: 1145 mSDtfsCounter, 587 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:09,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1728 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:09,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2022-11-16 12:02:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3513. [2022-11-16 12:02:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3513 states, 3507 states have (on average 1.3695466210436271) internal successors, (4803), 3512 states have internal predecessors, (4803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:10,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3513 states to 3513 states and 4803 transitions. [2022-11-16 12:02:10,229 INFO L78 Accepts]: Start accepts. Automaton has 3513 states and 4803 transitions. Word has length 56 [2022-11-16 12:02:10,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:10,229 INFO L495 AbstractCegarLoop]: Abstraction has 3513 states and 4803 transitions. [2022-11-16 12:02:10,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:10,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3513 states and 4803 transitions. [2022-11-16 12:02:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-16 12:02:10,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:10,232 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] [2022-11-16 12:02:10,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:02:10,232 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:10,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:10,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1498951000, now seen corresponding path program 1 times [2022-11-16 12:02:10,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:10,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402367184] [2022-11-16 12:02:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:10,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:10,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:10,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402367184] [2022-11-16 12:02:10,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402367184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:10,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:10,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:02:10,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465953696] [2022-11-16 12:02:10,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:10,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:02:10,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:10,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:02:10,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:10,322 INFO L87 Difference]: Start difference. First operand 3513 states and 4803 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:11,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:11,234 INFO L93 Difference]: Finished difference Result 7723 states and 10788 transitions. [2022-11-16 12:02:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:02:11,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-11-16 12:02:11,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:11,245 INFO L225 Difference]: With dead ends: 7723 [2022-11-16 12:02:11,245 INFO L226 Difference]: Without dead ends: 5314 [2022-11-16 12:02:11,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:11,249 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 657 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:11,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1963 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:11,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5314 states. [2022-11-16 12:02:11,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5314 to 5308. [2022-11-16 12:02:11,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5308 states, 5302 states have (on average 1.3583553376084496) internal successors, (7202), 5307 states have internal predecessors, (7202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:11,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5308 states to 5308 states and 7202 transitions. [2022-11-16 12:02:11,843 INFO L78 Accepts]: Start accepts. Automaton has 5308 states and 7202 transitions. Word has length 56 [2022-11-16 12:02:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:11,843 INFO L495 AbstractCegarLoop]: Abstraction has 5308 states and 7202 transitions. [2022-11-16 12:02:11,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand 5308 states and 7202 transitions. [2022-11-16 12:02:11,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 12:02:11,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:11,848 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] [2022-11-16 12:02:11,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:02:11,848 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:11,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:11,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1118792296, now seen corresponding path program 1 times [2022-11-16 12:02:11,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:11,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191927042] [2022-11-16 12:02:11,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:11,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:12,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:12,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191927042] [2022-11-16 12:02:12,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191927042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:12,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:12,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:02:12,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524709521] [2022-11-16 12:02:12,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:12,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:02:12,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:12,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:02:12,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:02:12,527 INFO L87 Difference]: Start difference. First operand 5308 states and 7202 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:17,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:17,293 INFO L93 Difference]: Finished difference Result 11562 states and 16051 transitions. [2022-11-16 12:02:17,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:02:17,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-11-16 12:02:17,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:17,319 INFO L225 Difference]: With dead ends: 11562 [2022-11-16 12:02:17,319 INFO L226 Difference]: Without dead ends: 11451 [2022-11-16 12:02:17,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:02:17,323 INFO L413 NwaCegarLoop]: 1091 mSDtfsCounter, 7504 mSDsluCounter, 5154 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7504 SdHoareTripleChecker+Valid, 6245 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:17,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7504 Valid, 6245 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1649 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:02:17,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11451 states. [2022-11-16 12:02:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11451 to 5295. [2022-11-16 12:02:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5290 states have (on average 1.3586011342155009) internal successors, (7187), 5294 states have internal predecessors, (7187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 7187 transitions. [2022-11-16 12:02:18,377 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 7187 transitions. Word has length 57 [2022-11-16 12:02:18,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:18,377 INFO L495 AbstractCegarLoop]: Abstraction has 5295 states and 7187 transitions. [2022-11-16 12:02:18,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:18,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 7187 transitions. [2022-11-16 12:02:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 12:02:18,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:18,381 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] [2022-11-16 12:02:18,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:02:18,382 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:18,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:18,382 INFO L85 PathProgramCache]: Analyzing trace with hash -677466950, now seen corresponding path program 1 times [2022-11-16 12:02:18,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:18,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565112430] [2022-11-16 12:02:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:18,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:18,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:18,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565112430] [2022-11-16 12:02:18,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565112430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:18,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:18,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:02:18,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362141935] [2022-11-16 12:02:18,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:18,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:02:18,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:18,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:02:18,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:18,458 INFO L87 Difference]: Start difference. First operand 5295 states and 7187 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:20,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:20,098 INFO L93 Difference]: Finished difference Result 9765 states and 13510 transitions. [2022-11-16 12:02:20,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:02:20,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-11-16 12:02:20,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:20,118 INFO L225 Difference]: With dead ends: 9765 [2022-11-16 12:02:20,118 INFO L226 Difference]: Without dead ends: 5599 [2022-11-16 12:02:20,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:20,124 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 820 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:20,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1221 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:20,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2022-11-16 12:02:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 4466. [2022-11-16 12:02:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 4462 states have (on average 1.3798744957418199) internal successors, (6157), 4465 states have internal predecessors, (6157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:21,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 6157 transitions. [2022-11-16 12:02:21,045 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 6157 transitions. Word has length 57 [2022-11-16 12:02:21,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:21,045 INFO L495 AbstractCegarLoop]: Abstraction has 4466 states and 6157 transitions. [2022-11-16 12:02:21,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:21,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 6157 transitions. [2022-11-16 12:02:21,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 12:02:21,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:21,049 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] [2022-11-16 12:02:21,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:02:21,049 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:21,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:21,050 INFO L85 PathProgramCache]: Analyzing trace with hash -611117000, now seen corresponding path program 1 times [2022-11-16 12:02:21,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:21,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365478376] [2022-11-16 12:02:21,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:21,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:21,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365478376] [2022-11-16 12:02:21,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365478376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:21,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:21,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:02:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927344336] [2022-11-16 12:02:21,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:21,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:02:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:02:21,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:21,133 INFO L87 Difference]: Start difference. First operand 4466 states and 6157 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:22,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:22,293 INFO L93 Difference]: Finished difference Result 8537 states and 11996 transitions. [2022-11-16 12:02:22,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:02:22,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-11-16 12:02:22,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:22,302 INFO L225 Difference]: With dead ends: 8537 [2022-11-16 12:02:22,302 INFO L226 Difference]: Without dead ends: 4871 [2022-11-16 12:02:22,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:22,308 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 638 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:22,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1002 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:22,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2022-11-16 12:02:23,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 3897. [2022-11-16 12:02:23,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3897 states, 3894 states have (on average 1.3931689779147407) internal successors, (5425), 3896 states have internal predecessors, (5425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 5425 transitions. [2022-11-16 12:02:23,226 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 5425 transitions. Word has length 57 [2022-11-16 12:02:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:23,227 INFO L495 AbstractCegarLoop]: Abstraction has 3897 states and 5425 transitions. [2022-11-16 12:02:23,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 5425 transitions. [2022-11-16 12:02:23,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-16 12:02:23,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:23,229 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] [2022-11-16 12:02:23,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:02:23,230 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:23,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:23,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1274837938, now seen corresponding path program 1 times [2022-11-16 12:02:23,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:23,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037317824] [2022-11-16 12:02:23,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:23,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:23,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:23,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037317824] [2022-11-16 12:02:23,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037317824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:23,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:23,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:02:23,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640960863] [2022-11-16 12:02:23,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:23,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:02:23,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:23,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:02:23,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:23,301 INFO L87 Difference]: Start difference. First operand 3897 states and 5425 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:24,609 INFO L93 Difference]: Finished difference Result 7794 states and 11032 transitions. [2022-11-16 12:02:24,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:02:24,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-11-16 12:02:24,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:24,615 INFO L225 Difference]: With dead ends: 7794 [2022-11-16 12:02:24,616 INFO L226 Difference]: Without dead ends: 4239 [2022-11-16 12:02:24,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:24,620 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 453 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:24,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 828 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4239 states. [2022-11-16 12:02:25,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4239 to 3480. [2022-11-16 12:02:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 3477 states have (on average 1.4075352315214265) internal successors, (4894), 3479 states have internal predecessors, (4894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 4894 transitions. [2022-11-16 12:02:25,608 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 4894 transitions. Word has length 57 [2022-11-16 12:02:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:25,608 INFO L495 AbstractCegarLoop]: Abstraction has 3480 states and 4894 transitions. [2022-11-16 12:02:25,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 4894 transitions. [2022-11-16 12:02:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-16 12:02:25,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:25,610 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] [2022-11-16 12:02:25,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:02:25,611 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:25,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash -410378211, now seen corresponding path program 1 times [2022-11-16 12:02:25,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:25,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948734335] [2022-11-16 12:02:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:26,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:26,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948734335] [2022-11-16 12:02:26,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948734335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:26,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:26,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:02:26,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697583976] [2022-11-16 12:02:26,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:26,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:02:26,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:02:26,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:02:26,317 INFO L87 Difference]: Start difference. First operand 3480 states and 4894 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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) [2022-11-16 12:02:29,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:29,823 INFO L93 Difference]: Finished difference Result 7413 states and 10473 transitions. [2022-11-16 12:02:29,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:02:29,824 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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 [2022-11-16 12:02:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:29,832 INFO L225 Difference]: With dead ends: 7413 [2022-11-16 12:02:29,832 INFO L226 Difference]: Without dead ends: 7261 [2022-11-16 12:02:29,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:02:29,835 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 3254 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 5108 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:29,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 5108 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:02:29,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7261 states. [2022-11-16 12:02:30,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7261 to 3426. [2022-11-16 12:02:30,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3424 states have (on average 1.4082943925233644) internal successors, (4822), 3425 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4822 transitions. [2022-11-16 12:02:30,871 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4822 transitions. Word has length 58 [2022-11-16 12:02:30,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:30,871 INFO L495 AbstractCegarLoop]: Abstraction has 3426 states and 4822 transitions. [2022-11-16 12:02:30,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 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) [2022-11-16 12:02:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4822 transitions. [2022-11-16 12:02:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-16 12:02:30,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:30,872 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] [2022-11-16 12:02:30,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:02:30,873 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:30,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:30,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1645651769, now seen corresponding path program 1 times [2022-11-16 12:02:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:30,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188432337] [2022-11-16 12:02:30,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:30,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:32,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:32,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188432337] [2022-11-16 12:02:32,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188432337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:32,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:32,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-11-16 12:02:32,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108735198] [2022-11-16 12:02:32,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:32,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:02:32,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:32,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:02:32,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:02:32,021 INFO L87 Difference]: Start difference. First operand 3426 states and 4822 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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) [2022-11-16 12:02:37,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:37,122 INFO L93 Difference]: Finished difference Result 6559 states and 9270 transitions. [2022-11-16 12:02:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:02:37,123 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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 [2022-11-16 12:02:37,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:37,130 INFO L225 Difference]: With dead ends: 6559 [2022-11-16 12:02:37,130 INFO L226 Difference]: Without dead ends: 6555 [2022-11-16 12:02:37,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=240, Invalid=950, Unknown=0, NotChecked=0, Total=1190 [2022-11-16 12:02:37,133 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 5304 mSDsluCounter, 6126 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5304 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:37,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5304 Valid, 6758 Invalid, 2543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-16 12:02:37,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6555 states. [2022-11-16 12:02:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6555 to 3434. [2022-11-16 12:02:38,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3432 states have (on average 1.407925407925408) internal successors, (4832), 3433 states have internal predecessors, (4832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:38,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4832 transitions. [2022-11-16 12:02:38,305 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4832 transitions. Word has length 58 [2022-11-16 12:02:38,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:38,306 INFO L495 AbstractCegarLoop]: Abstraction has 3434 states and 4832 transitions. [2022-11-16 12:02:38,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 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) [2022-11-16 12:02:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4832 transitions. [2022-11-16 12:02:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-16 12:02:38,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:38,308 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] [2022-11-16 12:02:38,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:02:38,308 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:38,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:38,309 INFO L85 PathProgramCache]: Analyzing trace with hash 3906094, now seen corresponding path program 1 times [2022-11-16 12:02:38,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:38,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146907849] [2022-11-16 12:02:38,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:38,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:39,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:39,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:39,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146907849] [2022-11-16 12:02:39,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146907849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:39,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:39,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-16 12:02:39,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139191238] [2022-11-16 12:02:39,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:39,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-16 12:02:39,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:39,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-16 12:02:39,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:02:39,276 INFO L87 Difference]: Start difference. First operand 3434 states and 4832 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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) [2022-11-16 12:02:44,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:44,522 INFO L93 Difference]: Finished difference Result 6494 states and 9181 transitions. [2022-11-16 12:02:44,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:02:44,523 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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 [2022-11-16 12:02:44,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:44,529 INFO L225 Difference]: With dead ends: 6494 [2022-11-16 12:02:44,529 INFO L226 Difference]: Without dead ends: 6490 [2022-11-16 12:02:44,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2022-11-16 12:02:44,531 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 3353 mSDsluCounter, 6406 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3353 SdHoareTripleChecker+Valid, 7042 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:44,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3353 Valid, 7042 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-16 12:02:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6490 states. [2022-11-16 12:02:45,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6490 to 3422. [2022-11-16 12:02:45,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3421 states have (on average 1.4083601286173633) internal successors, (4818), 3421 states have internal predecessors, (4818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 4818 transitions. [2022-11-16 12:02:45,523 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 4818 transitions. Word has length 59 [2022-11-16 12:02:45,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:45,523 INFO L495 AbstractCegarLoop]: Abstraction has 3422 states and 4818 transitions. [2022-11-16 12:02:45,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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) [2022-11-16 12:02:45,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 4818 transitions. [2022-11-16 12:02:45,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-16 12:02:45,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:45,526 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] [2022-11-16 12:02:45,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:02:45,527 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:45,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:45,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1327663405, now seen corresponding path program 1 times [2022-11-16 12:02:45,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:45,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34906413] [2022-11-16 12:02:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:45,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:45,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:45,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:45,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34906413] [2022-11-16 12:02:45,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34906413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:45,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:45,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:02:45,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076061539] [2022-11-16 12:02:45,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:45,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:02:45,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:45,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:02:45,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:02:45,634 INFO L87 Difference]: Start difference. First operand 3422 states and 4818 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:48,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:48,690 INFO L93 Difference]: Finished difference Result 10542 states and 15214 transitions. [2022-11-16 12:02:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:02:48,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-11-16 12:02:48,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:48,699 INFO L225 Difference]: With dead ends: 10542 [2022-11-16 12:02:48,699 INFO L226 Difference]: Without dead ends: 7756 [2022-11-16 12:02:48,704 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 [2022-11-16 12:02:48,705 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1590 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:48,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 1115 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7756 states. [2022-11-16 12:02:50,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7756 to 5898. [2022-11-16 12:02:50,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5898 states, 5897 states have (on average 1.4098694251314228) internal successors, (8314), 5897 states have internal predecessors, (8314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:50,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8314 transitions. [2022-11-16 12:02:50,539 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8314 transitions. Word has length 66 [2022-11-16 12:02:50,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:50,540 INFO L495 AbstractCegarLoop]: Abstraction has 5898 states and 8314 transitions. [2022-11-16 12:02:50,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:50,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8314 transitions. [2022-11-16 12:02:50,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 12:02:50,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:50,543 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:50,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:02:50,544 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:50,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:50,544 INFO L85 PathProgramCache]: Analyzing trace with hash -2106166862, now seen corresponding path program 1 times [2022-11-16 12:02:50,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:50,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599489051] [2022-11-16 12:02:50,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:50,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:50,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:50,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599489051] [2022-11-16 12:02:50,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599489051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:50,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:50,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:02:50,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024087452] [2022-11-16 12:02:50,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:50,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:02:50,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:50,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:02:50,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:02:50,664 INFO L87 Difference]: Start difference. First operand 5898 states and 8314 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:52,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:52,721 INFO L93 Difference]: Finished difference Result 9996 states and 14191 transitions. [2022-11-16 12:02:52,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:02:52,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2022-11-16 12:02:52,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:52,726 INFO L225 Difference]: With dead ends: 9996 [2022-11-16 12:02:52,726 INFO L226 Difference]: Without dead ends: 4712 [2022-11-16 12:02:52,730 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 [2022-11-16 12:02:52,730 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 1119 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:52,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 913 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:52,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4712 states. [2022-11-16 12:02:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4712 to 4708. [2022-11-16 12:02:54,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4708 states, 4707 states have (on average 1.3964308476736775) internal successors, (6573), 4707 states have internal predecessors, (6573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:54,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4708 states to 4708 states and 6573 transitions. [2022-11-16 12:02:54,288 INFO L78 Accepts]: Start accepts. Automaton has 4708 states and 6573 transitions. Word has length 67 [2022-11-16 12:02:54,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:02:54,288 INFO L495 AbstractCegarLoop]: Abstraction has 4708 states and 6573 transitions. [2022-11-16 12:02:54,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:54,289 INFO L276 IsEmpty]: Start isEmpty. Operand 4708 states and 6573 transitions. [2022-11-16 12:02:54,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:02:54,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:02:54,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:54,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:02:54,292 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:02:54,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:54,293 INFO L85 PathProgramCache]: Analyzing trace with hash -565252104, now seen corresponding path program 1 times [2022-11-16 12:02:54,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:54,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502105908] [2022-11-16 12:02:54,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:54,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:54,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:02:54,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:54,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502105908] [2022-11-16 12:02:54,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502105908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:54,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:54,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:02:54,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274582182] [2022-11-16 12:02:54,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:54,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:02:54,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:54,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:02:54,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:54,403 INFO L87 Difference]: Start difference. First operand 4708 states and 6573 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:02:57,542 INFO L93 Difference]: Finished difference Result 12516 states and 17707 transitions. [2022-11-16 12:02:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:02:57,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-16 12:02:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:02:57,553 INFO L225 Difference]: With dead ends: 12516 [2022-11-16 12:02:57,553 INFO L226 Difference]: Without dead ends: 8422 [2022-11-16 12:02:57,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:02:57,559 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 280 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:02:57,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 868 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:02:57,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8422 states. [2022-11-16 12:03:00,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8422 to 7908. [2022-11-16 12:03:00,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7908 states, 7907 states have (on average 1.3981282407992919) internal successors, (11055), 7907 states have internal predecessors, (11055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7908 states to 7908 states and 11055 transitions. [2022-11-16 12:03:00,620 INFO L78 Accepts]: Start accepts. Automaton has 7908 states and 11055 transitions. Word has length 69 [2022-11-16 12:03:00,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:00,620 INFO L495 AbstractCegarLoop]: Abstraction has 7908 states and 11055 transitions. [2022-11-16 12:03:00,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:00,620 INFO L276 IsEmpty]: Start isEmpty. Operand 7908 states and 11055 transitions. [2022-11-16 12:03:00,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 12:03:00,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:00,623 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] [2022-11-16 12:03:00,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:03:00,624 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:03:00,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash -195732182, now seen corresponding path program 1 times [2022-11-16 12:03:00,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:00,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160816940] [2022-11-16 12:03:00,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:00,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:00,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:00,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160816940] [2022-11-16 12:03:00,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160816940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:00,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:00,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:00,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485400612] [2022-11-16 12:03:00,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:00,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:00,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:00,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:00,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:00,740 INFO L87 Difference]: Start difference. First operand 7908 states and 11055 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) [2022-11-16 12:03:06,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:06,704 INFO L93 Difference]: Finished difference Result 21738 states and 30539 transitions. [2022-11-16 12:03:06,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:06,704 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 [2022-11-16 12:03:06,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:06,724 INFO L225 Difference]: With dead ends: 21738 [2022-11-16 12:03:06,725 INFO L226 Difference]: Without dead ends: 14428 [2022-11-16 12:03:06,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:06,730 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 325 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:06,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 828 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:03:06,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14428 states. [2022-11-16 12:03:12,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14428 to 13402. [2022-11-16 12:03:12,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13402 states, 13401 states have (on average 1.3883292291620029) internal successors, (18605), 13401 states have internal predecessors, (18605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13402 states to 13402 states and 18605 transitions. [2022-11-16 12:03:12,040 INFO L78 Accepts]: Start accepts. Automaton has 13402 states and 18605 transitions. Word has length 72 [2022-11-16 12:03:12,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:12,040 INFO L495 AbstractCegarLoop]: Abstraction has 13402 states and 18605 transitions. [2022-11-16 12:03:12,041 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) [2022-11-16 12:03:12,041 INFO L276 IsEmpty]: Start isEmpty. Operand 13402 states and 18605 transitions. [2022-11-16 12:03:12,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 12:03:12,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:12,043 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] [2022-11-16 12:03:12,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:03:12,044 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:03:12,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:12,045 INFO L85 PathProgramCache]: Analyzing trace with hash 950824169, now seen corresponding path program 1 times [2022-11-16 12:03:12,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:12,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566423536] [2022-11-16 12:03:12,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:12,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:12,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:12,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:12,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566423536] [2022-11-16 12:03:12,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566423536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:12,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:12,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:03:12,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526938206] [2022-11-16 12:03:12,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:12,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:03:12,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:12,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:03:12,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:03:12,317 INFO L87 Difference]: Start difference. First operand 13402 states and 18605 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 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) [2022-11-16 12:03:24,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:24,020 INFO L93 Difference]: Finished difference Result 28279 states and 38743 transitions. [2022-11-16 12:03:24,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:03:24,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 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 [2022-11-16 12:03:24,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:24,063 INFO L225 Difference]: With dead ends: 28279 [2022-11-16 12:03:24,063 INFO L226 Difference]: Without dead ends: 28277 [2022-11-16 12:03:24,068 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 [2022-11-16 12:03:24,069 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 630 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:24,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2318 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:24,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28277 states. [2022-11-16 12:03:30,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28277 to 14506. [2022-11-16 12:03:30,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14506 states, 14505 states have (on average 1.358772836952775) internal successors, (19709), 14505 states have internal predecessors, (19709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:30,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14506 states to 14506 states and 19709 transitions. [2022-11-16 12:03:30,963 INFO L78 Accepts]: Start accepts. Automaton has 14506 states and 19709 transitions. Word has length 72 [2022-11-16 12:03:30,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:30,963 INFO L495 AbstractCegarLoop]: Abstraction has 14506 states and 19709 transitions. [2022-11-16 12:03:30,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 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) [2022-11-16 12:03:30,963 INFO L276 IsEmpty]: Start isEmpty. Operand 14506 states and 19709 transitions. [2022-11-16 12:03:30,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-16 12:03:30,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:30,967 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] [2022-11-16 12:03:30,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:03:30,967 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:03:30,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:30,968 INFO L85 PathProgramCache]: Analyzing trace with hash -467379378, now seen corresponding path program 1 times [2022-11-16 12:03:30,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:30,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410535557] [2022-11-16 12:03:30,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:30,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:31,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:31,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:31,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410535557] [2022-11-16 12:03:31,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410535557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:31,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:31,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:03:31,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930107269] [2022-11-16 12:03:31,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:31,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:03:31,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:31,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:03:31,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:31,049 INFO L87 Difference]: Start difference. First operand 14506 states and 19709 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) [2022-11-16 12:03:40,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:03:40,683 INFO L93 Difference]: Finished difference Result 39233 states and 53330 transitions. [2022-11-16 12:03:40,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:03:40,684 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 [2022-11-16 12:03:40,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:03:40,715 INFO L225 Difference]: With dead ends: 39233 [2022-11-16 12:03:40,715 INFO L226 Difference]: Without dead ends: 25327 [2022-11-16 12:03:40,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:03:40,726 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 294 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:03:40,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 814 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:03:40,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25327 states. [2022-11-16 12:03:52,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25327 to 25325. [2022-11-16 12:03:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25325 states, 25324 states have (on average 1.3397567524877587) internal successors, (33928), 25324 states have internal predecessors, (33928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:52,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25325 states to 25325 states and 33928 transitions. [2022-11-16 12:03:52,204 INFO L78 Accepts]: Start accepts. Automaton has 25325 states and 33928 transitions. Word has length 73 [2022-11-16 12:03:52,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:03:52,204 INFO L495 AbstractCegarLoop]: Abstraction has 25325 states and 33928 transitions. [2022-11-16 12:03:52,204 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) [2022-11-16 12:03:52,204 INFO L276 IsEmpty]: Start isEmpty. Operand 25325 states and 33928 transitions. [2022-11-16 12:03:52,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-16 12:03:52,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:03:52,209 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] [2022-11-16 12:03:52,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:03:52,209 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:03:52,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:52,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1772479294, now seen corresponding path program 1 times [2022-11-16 12:03:52,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:52,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767872886] [2022-11-16 12:03:52,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:52,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:03:52,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:52,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767872886] [2022-11-16 12:03:52,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767872886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:52,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:52,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:03:52,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92476348] [2022-11-16 12:03:52,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:52,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:03:52,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:52,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:03:52,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:03:52,348 INFO L87 Difference]: Start difference. First operand 25325 states and 33928 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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) [2022-11-16 12:04:08,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:08,347 INFO L93 Difference]: Finished difference Result 43377 states and 58312 transitions. [2022-11-16 12:04:08,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:04:08,348 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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 [2022-11-16 12:04:08,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:08,415 INFO L225 Difference]: With dead ends: 43377 [2022-11-16 12:04:08,415 INFO L226 Difference]: Without dead ends: 35983 [2022-11-16 12:04:08,429 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 [2022-11-16 12:04:08,430 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 1008 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 1408 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:08,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 1408 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:04:08,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35983 states. [2022-11-16 12:04:22,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35983 to 31337. [2022-11-16 12:04:22,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31337 states, 31336 states have (on average 1.3353331631350522) internal successors, (41844), 31336 states have internal predecessors, (41844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:22,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31337 states to 31337 states and 41844 transitions. [2022-11-16 12:04:22,534 INFO L78 Accepts]: Start accepts. Automaton has 31337 states and 41844 transitions. Word has length 77 [2022-11-16 12:04:22,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:22,534 INFO L495 AbstractCegarLoop]: Abstraction has 31337 states and 41844 transitions. [2022-11-16 12:04:22,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 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) [2022-11-16 12:04:22,534 INFO L276 IsEmpty]: Start isEmpty. Operand 31337 states and 41844 transitions. [2022-11-16 12:04:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:04:22,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:22,539 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] [2022-11-16 12:04:22,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:04:22,539 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:04:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:22,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1856799535, now seen corresponding path program 1 times [2022-11-16 12:04:22,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:22,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307674065] [2022-11-16 12:04:22,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:22,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:22,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:22,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307674065] [2022-11-16 12:04:22,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307674065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:22,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:22,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:22,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69814024] [2022-11-16 12:04:22,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:22,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:04:22,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:22,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:04:22,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:04:22,716 INFO L87 Difference]: Start difference. First operand 31337 states and 41844 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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) [2022-11-16 12:04:39,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:04:39,378 INFO L93 Difference]: Finished difference Result 47113 states and 63152 transitions. [2022-11-16 12:04:39,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:04:39,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 [2022-11-16 12:04:39,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:04:39,441 INFO L225 Difference]: With dead ends: 47113 [2022-11-16 12:04:39,441 INFO L226 Difference]: Without dead ends: 39719 [2022-11-16 12:04:39,451 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 [2022-11-16 12:04:39,451 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 985 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:04:39,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1481 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:04:39,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39719 states. [2022-11-16 12:04:53,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39719 to 37345. [2022-11-16 12:04:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37345 states, 37344 states have (on average 1.3323693230505569) internal successors, (49756), 37344 states have internal predecessors, (49756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:04:53,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37345 states to 37345 states and 49756 transitions. [2022-11-16 12:04:53,526 INFO L78 Accepts]: Start accepts. Automaton has 37345 states and 49756 transitions. Word has length 78 [2022-11-16 12:04:53,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:04:53,527 INFO L495 AbstractCegarLoop]: Abstraction has 37345 states and 49756 transitions. [2022-11-16 12:04:53,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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) [2022-11-16 12:04:53,527 INFO L276 IsEmpty]: Start isEmpty. Operand 37345 states and 49756 transitions. [2022-11-16 12:04:53,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:04:53,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:04:53,529 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] [2022-11-16 12:04:53,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:04:53,529 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-16 12:04:53,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:04:53,529 INFO L85 PathProgramCache]: Analyzing trace with hash 2010164398, now seen corresponding path program 1 times [2022-11-16 12:04:53,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:04:53,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007370994] [2022-11-16 12:04:53,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:04:53,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:04:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:04:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:04:53,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:04:53,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007370994] [2022-11-16 12:04:53,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007370994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:04:53,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:04:53,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:04:53,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508924031] [2022-11-16 12:04:53,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:04:53,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:04:53,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:04:53,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:04:53,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:04:53,644 INFO L87 Difference]: Start difference. First operand 37345 states and 49756 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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) [2022-11-16 12:05:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:05:10,941 INFO L93 Difference]: Finished difference Result 55337 states and 74016 transitions. [2022-11-16 12:05:10,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:05:10,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 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 [2022-11-16 12:05:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:05:10,995 INFO L225 Difference]: With dead ends: 55337 [2022-11-16 12:05:10,995 INFO L226 Difference]: Without dead ends: 46247 [2022-11-16 12:05:11,005 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 [2022-11-16 12:05:11,006 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 1129 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:05:11,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 1245 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:05:11,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46247 states.