./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+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R --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 0ed6e4196d49d75b29a7ddd297e9986c08c6bd65f18221f72f78571f381f483e --- 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-38b53e6 [2022-11-25 17:54:08,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:54:08,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:54:08,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:54:08,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:54:08,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:54:08,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:54:08,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:54:08,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:54:08,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:54:08,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:54:08,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:54:08,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:54:08,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:54:08,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:54:08,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:54:08,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:54:08,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:54:08,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:54:08,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:54:08,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:54:08,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:54:08,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:54:08,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:54:08,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:54:08,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:54:08,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:54:08,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:54:08,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:54:08,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:54:08,635 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:54:08,636 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:54:08,637 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:54:08,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:54:08,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:54:08,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:54:08,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:54:08,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:54:08,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:54:08,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:54:08,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:54:08,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:54:08,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:54:08,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:54:08,703 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:54:08,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:54:08,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:54:08,704 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:54:08,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:54:08,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:54:08,706 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:54:08,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:54:08,708 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:54:08,708 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:54:08,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:54:08,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:54:08,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:54:08,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:54:08,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:54:08,710 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:54:08,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:54:08,710 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:54:08,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:54:08,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:54:08,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:54:08,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:54:08,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:54:08,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:54:08,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:54:08,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:54:08,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:54:08,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:54:08,714 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:54:08,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:54:08,715 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:54:08,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:54:08,716 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ed6e4196d49d75b29a7ddd297e9986c08c6bd65f18221f72f78571f381f483e [2022-11-25 17:54:09,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:54:09,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:54:09,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:54:09,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:54:09,085 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:54:09,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-25 17:54:12,429 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:54:12,801 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:54:12,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-25 17:54:12,819 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/data/c1c38a1d8/3c5607b285a8484594210e34e49f389a/FLAG3abd418f1 [2022-11-25 17:54:12,835 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/data/c1c38a1d8/3c5607b285a8484594210e34e49f389a [2022-11-25 17:54:12,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:54:12,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:54:12,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:54:12,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:54:12,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:54:12,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1513a5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:12, skipping insertion in model container [2022-11-25 17:54:12,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:54:12" (1/1) ... [2022-11-25 17:54:12,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:54:12,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:54:13,278 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8637,8650] [2022-11-25 17:54:13,383 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15862,15875] [2022-11-25 17:54:13,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2022-11-25 17:54:13,414 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19083,19096] [2022-11-25 17:54:13,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:54:13,660 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:54:13,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[8637,8650] [2022-11-25 17:54:13,748 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15862,15875] [2022-11-25 17:54:13,757 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18059,18072] [2022-11-25 17:54:13,762 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[19083,19096] [2022-11-25 17:54:13,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:54:13,985 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:54:13,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13 WrapperNode [2022-11-25 17:54:13,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:54:13,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:54:13,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:54:13,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:54:13,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,177 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2592 [2022-11-25 17:54:14,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:54:14,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:54:14,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:54:14,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:54:14,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,306 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:54:14,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:54:14,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:54:14,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:54:14,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (1/1) ... [2022-11-25 17:54:14,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:54:14,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:54:14,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:54:14,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:54:14,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:54:14,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:54:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:54:14,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:54:14,732 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:54:14,740 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:54:16,251 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:54:16,262 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:54:16,262 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:54:16,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:54:16 BoogieIcfgContainer [2022-11-25 17:54:16,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:54:16,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:54:16,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:54:16,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:54:16,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:54:12" (1/3) ... [2022-11-25 17:54:16,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74251c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:54:16, skipping insertion in model container [2022-11-25 17:54:16,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:54:13" (2/3) ... [2022-11-25 17:54:16,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74251c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:54:16, skipping insertion in model container [2022-11-25 17:54:16,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:54:16" (3/3) ... [2022-11-25 17:54:16,274 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2022-11-25 17:54:16,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:54:16,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 17:54:16,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:54:16,366 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;@2e696194, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:54:16,366 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 17:54:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 452 states have (on average 1.8495575221238938) internal successors, (836), 456 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:16,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 17:54:16,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:16,391 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] [2022-11-25 17:54:16,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:16,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1707798208, now seen corresponding path program 1 times [2022-11-25 17:54:16,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:16,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453502079] [2022-11-25 17:54:16,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:16,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:16,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:16,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:16,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453502079] [2022-11-25 17:54:16,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453502079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:16,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:16,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:54:16,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566288390] [2022-11-25 17:54:16,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:16,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:16,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:16,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:16,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:54:16,974 INFO L87 Difference]: Start difference. First operand has 457 states, 452 states have (on average 1.8495575221238938) internal successors, (836), 456 states have internal predecessors, (836), 0 states have call successors, (0), 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 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:17,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:17,204 INFO L93 Difference]: Finished difference Result 725 states and 1271 transitions. [2022-11-25 17:54:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:17,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-11-25 17:54:17,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:17,229 INFO L225 Difference]: With dead ends: 725 [2022-11-25 17:54:17,230 INFO L226 Difference]: Without dead ends: 571 [2022-11-25 17:54:17,233 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 [2022-11-25 17:54:17,237 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 438 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:17,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1416 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:54:17,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-11-25 17:54:17,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 565. [2022-11-25 17:54:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 561 states have (on average 1.3440285204991087) internal successors, (754), 564 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 754 transitions. [2022-11-25 17:54:17,331 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 754 transitions. Word has length 51 [2022-11-25 17:54:17,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:17,332 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 754 transitions. [2022-11-25 17:54:17,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:17,332 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 754 transitions. [2022-11-25 17:54:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 17:54:17,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:17,336 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] [2022-11-25 17:54:17,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:54:17,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:17,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:17,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1349444518, now seen corresponding path program 1 times [2022-11-25 17:54:17,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:17,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905757676] [2022-11-25 17:54:17,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:17,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:17,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:17,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905757676] [2022-11-25 17:54:17,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905757676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:17,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:17,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:54:17,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061531199] [2022-11-25 17:54:17,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:17,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:17,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:17,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:17,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:54:17,480 INFO L87 Difference]: Start difference. First operand 565 states and 754 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:17,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:17,641 INFO L93 Difference]: Finished difference Result 994 states and 1379 transitions. [2022-11-25 17:54:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:17,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-11-25 17:54:17,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:17,646 INFO L225 Difference]: With dead ends: 994 [2022-11-25 17:54:17,647 INFO L226 Difference]: Without dead ends: 781 [2022-11-25 17:54:17,651 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 [2022-11-25 17:54:17,652 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 314 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:17,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1017 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:54:17,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-11-25 17:54:17,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 774. [2022-11-25 17:54:17,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 770 states have (on average 1.3714285714285714) internal successors, (1056), 773 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1056 transitions. [2022-11-25 17:54:17,712 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1056 transitions. Word has length 51 [2022-11-25 17:54:17,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:17,716 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1056 transitions. [2022-11-25 17:54:17,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1056 transitions. [2022-11-25 17:54:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 17:54:17,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:17,723 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] [2022-11-25 17:54:17,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:54:17,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:17,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:17,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1493728400, now seen corresponding path program 1 times [2022-11-25 17:54:17,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:17,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124744999] [2022-11-25 17:54:17,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:17,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:18,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:18,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124744999] [2022-11-25 17:54:18,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124744999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:18,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:18,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:54:18,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562436600] [2022-11-25 17:54:18,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:18,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:54:18,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:18,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:54:18,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:54:18,031 INFO L87 Difference]: Start difference. First operand 774 states and 1056 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:18,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:18,588 INFO L93 Difference]: Finished difference Result 1720 states and 2419 transitions. [2022-11-25 17:54:18,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:54:18,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-11-25 17:54:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:18,593 INFO L225 Difference]: With dead ends: 1720 [2022-11-25 17:54:18,593 INFO L226 Difference]: Without dead ends: 1063 [2022-11-25 17:54:18,595 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 [2022-11-25 17:54:18,596 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1742 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:18,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 392 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:54:18,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2022-11-25 17:54:18,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1057. [2022-11-25 17:54:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1053 states have (on average 1.4074074074074074) internal successors, (1482), 1056 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1482 transitions. [2022-11-25 17:54:18,693 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1482 transitions. Word has length 51 [2022-11-25 17:54:18,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:18,694 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1482 transitions. [2022-11-25 17:54:18,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:18,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1482 transitions. [2022-11-25 17:54:18,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 17:54:18,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:18,696 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] [2022-11-25 17:54:18,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:54:18,697 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:18,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:18,698 INFO L85 PathProgramCache]: Analyzing trace with hash -358090099, now seen corresponding path program 1 times [2022-11-25 17:54:18,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:18,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939871174] [2022-11-25 17:54:18,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:18,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:18,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:18,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939871174] [2022-11-25 17:54:18,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939871174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:18,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:18,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:54:18,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334773885] [2022-11-25 17:54:18,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:18,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:18,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:54:18,774 INFO L87 Difference]: Start difference. First operand 1057 states and 1482 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2022-11-25 17:54:19,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:19,009 INFO L93 Difference]: Finished difference Result 2561 states and 3637 transitions. [2022-11-25 17:54:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:19,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 [2022-11-25 17:54:19,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:19,017 INFO L225 Difference]: With dead ends: 2561 [2022-11-25 17:54:19,018 INFO L226 Difference]: Without dead ends: 1730 [2022-11-25 17:54:19,022 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 [2022-11-25 17:54:19,029 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 364 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:19,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 933 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:54:19,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2022-11-25 17:54:19,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1716. [2022-11-25 17:54:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1712 states have (on average 1.3919392523364487) internal successors, (2383), 1715 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:19,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2383 transitions. [2022-11-25 17:54:19,198 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2383 transitions. Word has length 52 [2022-11-25 17:54:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:19,199 INFO L495 AbstractCegarLoop]: Abstraction has 1716 states and 2383 transitions. [2022-11-25 17:54:19,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2022-11-25 17:54:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2383 transitions. [2022-11-25 17:54:19,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-25 17:54:19,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:19,203 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] [2022-11-25 17:54:19,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:54:19,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:19,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:19,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1296606516, now seen corresponding path program 1 times [2022-11-25 17:54:19,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:19,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649859143] [2022-11-25 17:54:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:19,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:19,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:19,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:19,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649859143] [2022-11-25 17:54:19,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649859143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:19,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:19,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:54:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788651614] [2022-11-25 17:54:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:19,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:54:19,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:19,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:54:19,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:54:19,394 INFO L87 Difference]: Start difference. First operand 1716 states and 2383 transitions. 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) [2022-11-25 17:54:20,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:20,027 INFO L93 Difference]: Finished difference Result 3785 states and 5312 transitions. [2022-11-25 17:54:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:54:20,027 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 [2022-11-25 17:54:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:20,036 INFO L225 Difference]: With dead ends: 3785 [2022-11-25 17:54:20,036 INFO L226 Difference]: Without dead ends: 2241 [2022-11-25 17:54:20,039 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 [2022-11-25 17:54:20,040 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 1537 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:20,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 367 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:54:20,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2022-11-25 17:54:20,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 2227. [2022-11-25 17:54:20,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 2223 states have (on average 1.3967611336032388) internal successors, (3105), 2226 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:20,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3105 transitions. [2022-11-25 17:54:20,344 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3105 transitions. Word has length 52 [2022-11-25 17:54:20,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:20,346 INFO L495 AbstractCegarLoop]: Abstraction has 2227 states and 3105 transitions. [2022-11-25 17:54:20,348 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) [2022-11-25 17:54:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3105 transitions. [2022-11-25 17:54:20,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-25 17:54:20,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:20,356 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] [2022-11-25 17:54:20,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:54:20,357 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:20,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:20,358 INFO L85 PathProgramCache]: Analyzing trace with hash -482685133, now seen corresponding path program 1 times [2022-11-25 17:54:20,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:20,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275434331] [2022-11-25 17:54:20,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:20,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:20,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:20,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275434331] [2022-11-25 17:54:20,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275434331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:20,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:20,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:54:20,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619068512] [2022-11-25 17:54:20,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:20,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:54:20,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:20,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:54:20,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:54:20,468 INFO L87 Difference]: Start difference. First operand 2227 states and 3105 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) [2022-11-25 17:54:21,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:21,225 INFO L93 Difference]: Finished difference Result 5040 states and 7066 transitions. [2022-11-25 17:54:21,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:54:21,225 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 [2022-11-25 17:54:21,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:21,236 INFO L225 Difference]: With dead ends: 5040 [2022-11-25 17:54:21,236 INFO L226 Difference]: Without dead ends: 2985 [2022-11-25 17:54:21,239 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 [2022-11-25 17:54:21,239 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1386 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:21,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 335 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:54:21,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2022-11-25 17:54:21,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2966. [2022-11-25 17:54:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 2962 states have (on average 1.3902768399729912) internal successors, (4118), 2965 states have internal predecessors, (4118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:21,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 4118 transitions. [2022-11-25 17:54:21,614 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 4118 transitions. Word has length 53 [2022-11-25 17:54:21,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:21,615 INFO L495 AbstractCegarLoop]: Abstraction has 2966 states and 4118 transitions. [2022-11-25 17:54:21,615 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) [2022-11-25 17:54:21,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 4118 transitions. [2022-11-25 17:54:21,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 17:54:21,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:21,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:21,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:54:21,618 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:21,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:21,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1630046103, now seen corresponding path program 1 times [2022-11-25 17:54:21,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:21,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506786987] [2022-11-25 17:54:21,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:21,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:21,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:21,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506786987] [2022-11-25 17:54:21,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506786987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:21,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:21,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:54:21,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58394337] [2022-11-25 17:54:21,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:21,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:54:21,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:21,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:54:21,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:54:21,769 INFO L87 Difference]: Start difference. First operand 2966 states and 4118 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:23,675 INFO L93 Difference]: Finished difference Result 9648 states and 13611 transitions. [2022-11-25 17:54:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:54:23,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-11-25 17:54:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:23,706 INFO L225 Difference]: With dead ends: 9648 [2022-11-25 17:54:23,706 INFO L226 Difference]: Without dead ends: 8327 [2022-11-25 17:54:23,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:54:23,710 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 2823 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:23,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 599 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:54:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8327 states. [2022-11-25 17:54:24,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8327 to 2980. [2022-11-25 17:54:24,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2976 states have (on average 1.3897849462365592) internal successors, (4136), 2979 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:24,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4136 transitions. [2022-11-25 17:54:24,293 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4136 transitions. Word has length 54 [2022-11-25 17:54:24,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:24,294 INFO L495 AbstractCegarLoop]: Abstraction has 2980 states and 4136 transitions. [2022-11-25 17:54:24,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:24,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4136 transitions. [2022-11-25 17:54:24,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 17:54:24,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:24,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:24,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:54:24,298 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:24,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:24,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1470909546, now seen corresponding path program 1 times [2022-11-25 17:54:24,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:24,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786539703] [2022-11-25 17:54:24,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:24,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:24,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:24,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786539703] [2022-11-25 17:54:24,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786539703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:24,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:24,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:54:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938182091] [2022-11-25 17:54:24,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:24,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:54:24,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:24,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:54:24,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:54:24,467 INFO L87 Difference]: Start difference. First operand 2980 states and 4136 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:26,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:26,925 INFO L93 Difference]: Finished difference Result 10678 states and 15139 transitions. [2022-11-25 17:54:26,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:54:26,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-11-25 17:54:26,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:26,962 INFO L225 Difference]: With dead ends: 10678 [2022-11-25 17:54:26,962 INFO L226 Difference]: Without dead ends: 9560 [2022-11-25 17:54:26,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:54:26,967 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 2129 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:26,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 757 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 17:54:26,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2022-11-25 17:54:27,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 3002. [2022-11-25 17:54:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2998 states have (on average 1.3899266177451635) internal successors, (4167), 3001 states have internal predecessors, (4167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:27,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 4167 transitions. [2022-11-25 17:54:27,600 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 4167 transitions. Word has length 54 [2022-11-25 17:54:27,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:27,603 INFO L495 AbstractCegarLoop]: Abstraction has 3002 states and 4167 transitions. [2022-11-25 17:54:27,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:27,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 4167 transitions. [2022-11-25 17:54:27,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 17:54:27,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:27,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:54:27,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:54:27,607 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:27,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:27,607 INFO L85 PathProgramCache]: Analyzing trace with hash 269556297, now seen corresponding path program 1 times [2022-11-25 17:54:27,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:27,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578942732] [2022-11-25 17:54:27,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:27,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:27,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:27,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578942732] [2022-11-25 17:54:27,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578942732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:27,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:27,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:54:27,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465512197] [2022-11-25 17:54:27,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:27,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:54:27,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:27,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:54:27,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:54:27,772 INFO L87 Difference]: Start difference. First operand 3002 states and 4167 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:30,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:30,460 INFO L93 Difference]: Finished difference Result 12683 states and 17895 transitions. [2022-11-25 17:54:30,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:54:30,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-11-25 17:54:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:30,489 INFO L225 Difference]: With dead ends: 12683 [2022-11-25 17:54:30,489 INFO L226 Difference]: Without dead ends: 11715 [2022-11-25 17:54:30,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:54:30,495 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 3300 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3300 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:30,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3300 Valid, 655 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:54:30,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11715 states. [2022-11-25 17:54:31,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11715 to 3036. [2022-11-25 17:54:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 3032 states have (on average 1.3888522427440633) internal successors, (4211), 3035 states have internal predecessors, (4211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4211 transitions. [2022-11-25 17:54:31,224 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4211 transitions. Word has length 54 [2022-11-25 17:54:31,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:31,224 INFO L495 AbstractCegarLoop]: Abstraction has 3036 states and 4211 transitions. [2022-11-25 17:54:31,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:31,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4211 transitions. [2022-11-25 17:54:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 17:54:31,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:31,228 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] [2022-11-25 17:54:31,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:54:31,228 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:31,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:31,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1866987345, now seen corresponding path program 1 times [2022-11-25 17:54:31,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:31,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482683471] [2022-11-25 17:54:31,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:31,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:31,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:31,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:31,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482683471] [2022-11-25 17:54:31,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482683471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:31,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:31,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:54:31,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546307582] [2022-11-25 17:54:31,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:31,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:54:31,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:31,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:54:31,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:54:31,586 INFO L87 Difference]: Start difference. First operand 3036 states and 4211 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) [2022-11-25 17:54:33,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:33,619 INFO L93 Difference]: Finished difference Result 7506 states and 10605 transitions. [2022-11-25 17:54:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:54:33,620 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 [2022-11-25 17:54:33,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:33,632 INFO L225 Difference]: With dead ends: 7506 [2022-11-25 17:54:33,633 INFO L226 Difference]: Without dead ends: 5545 [2022-11-25 17:54:33,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:54:33,638 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 2475 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2475 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:33,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2475 Valid, 929 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 17:54:33,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5545 states. [2022-11-25 17:54:34,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5545 to 2949. [2022-11-25 17:54:34,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2945 states have (on average 1.3884550084889644) internal successors, (4089), 2948 states have internal predecessors, (4089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:34,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 4089 transitions. [2022-11-25 17:54:34,222 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 4089 transitions. Word has length 55 [2022-11-25 17:54:34,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:34,222 INFO L495 AbstractCegarLoop]: Abstraction has 2949 states and 4089 transitions. [2022-11-25 17:54:34,222 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) [2022-11-25 17:54:34,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 4089 transitions. [2022-11-25 17:54:34,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 17:54:34,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:34,225 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] [2022-11-25 17:54:34,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:54:34,226 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:34,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:34,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1508633655, now seen corresponding path program 1 times [2022-11-25 17:54:34,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:34,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380440054] [2022-11-25 17:54:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:34,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:34,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:34,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380440054] [2022-11-25 17:54:34,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380440054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:34,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:34,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:54:34,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962991328] [2022-11-25 17:54:34,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:34,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:54:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:34,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:54:34,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:54:34,559 INFO L87 Difference]: Start difference. First operand 2949 states and 4089 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) [2022-11-25 17:54:37,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:37,378 INFO L93 Difference]: Finished difference Result 8251 states and 11646 transitions. [2022-11-25 17:54:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:54:37,379 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 [2022-11-25 17:54:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:37,389 INFO L225 Difference]: With dead ends: 8251 [2022-11-25 17:54:37,390 INFO L226 Difference]: Without dead ends: 6444 [2022-11-25 17:54:37,393 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 [2022-11-25 17:54:37,394 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 2081 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:37,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 1471 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-25 17:54:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6444 states. [2022-11-25 17:54:38,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6444 to 2920. [2022-11-25 17:54:38,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2916 states have (on average 1.3882030178326474) internal successors, (4048), 2919 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) [2022-11-25 17:54:38,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4048 transitions. [2022-11-25 17:54:38,064 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4048 transitions. Word has length 55 [2022-11-25 17:54:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:38,064 INFO L495 AbstractCegarLoop]: Abstraction has 2920 states and 4048 transitions. [2022-11-25 17:54:38,064 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) [2022-11-25 17:54:38,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4048 transitions. [2022-11-25 17:54:38,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 17:54:38,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:38,067 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] [2022-11-25 17:54:38,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:54:38,068 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:38,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1235712110, now seen corresponding path program 1 times [2022-11-25 17:54:38,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:38,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920417895] [2022-11-25 17:54:38,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:38,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:38,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:38,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920417895] [2022-11-25 17:54:38,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920417895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:38,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:38,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:54:38,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201375786] [2022-11-25 17:54:38,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:38,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:54:38,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:38,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:54:38,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:54:38,412 INFO L87 Difference]: Start difference. First operand 2920 states and 4048 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) [2022-11-25 17:54:41,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:41,099 INFO L93 Difference]: Finished difference Result 7125 states and 10083 transitions. [2022-11-25 17:54:41,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:54:41,099 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 [2022-11-25 17:54:41,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:41,114 INFO L225 Difference]: With dead ends: 7125 [2022-11-25 17:54:41,115 INFO L226 Difference]: Without dead ends: 7120 [2022-11-25 17:54:41,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-25 17:54:41,119 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 2354 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:41,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 1222 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:54:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2022-11-25 17:54:41,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 2920. [2022-11-25 17:54:41,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2916 states have (on average 1.387517146776406) internal successors, (4046), 2919 states have internal predecessors, (4046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:42,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4046 transitions. [2022-11-25 17:54:42,005 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4046 transitions. Word has length 55 [2022-11-25 17:54:42,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:42,005 INFO L495 AbstractCegarLoop]: Abstraction has 2920 states and 4046 transitions. [2022-11-25 17:54:42,006 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) [2022-11-25 17:54:42,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4046 transitions. [2022-11-25 17:54:42,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 17:54:42,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:42,008 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] [2022-11-25 17:54:42,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:54:42,009 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:42,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1411677613, now seen corresponding path program 1 times [2022-11-25 17:54:42,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:42,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317106518] [2022-11-25 17:54:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:42,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:42,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:42,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:42,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317106518] [2022-11-25 17:54:42,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317106518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:42,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:42,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:54:42,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932383829] [2022-11-25 17:54:42,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:42,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:42,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:42,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:42,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:54:42,077 INFO L87 Difference]: Start difference. First operand 2920 states and 4046 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) [2022-11-25 17:54:42,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:42,740 INFO L93 Difference]: Finished difference Result 4193 states and 5857 transitions. [2022-11-25 17:54:42,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:42,741 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 [2022-11-25 17:54:42,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:42,743 INFO L225 Difference]: With dead ends: 4193 [2022-11-25 17:54:42,744 INFO L226 Difference]: Without dead ends: 2927 [2022-11-25 17:54:42,745 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 [2022-11-25 17:54:42,746 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 224 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:42,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 797 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:54:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2022-11-25 17:54:43,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2920. [2022-11-25 17:54:43,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2916 states have (on average 1.3737997256515775) internal successors, (4006), 2919 states have internal predecessors, (4006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:43,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4006 transitions. [2022-11-25 17:54:43,508 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4006 transitions. Word has length 56 [2022-11-25 17:54:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:43,509 INFO L495 AbstractCegarLoop]: Abstraction has 2920 states and 4006 transitions. [2022-11-25 17:54:43,509 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) [2022-11-25 17:54:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4006 transitions. [2022-11-25 17:54:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 17:54:43,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:43,511 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] [2022-11-25 17:54:43,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:54:43,512 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:43,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:43,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1038080617, now seen corresponding path program 1 times [2022-11-25 17:54:43,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:43,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382995712] [2022-11-25 17:54:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:43,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:43,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:43,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382995712] [2022-11-25 17:54:43,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382995712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:43,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:43,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:54:43,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321958182] [2022-11-25 17:54:43,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:43,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:43,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:43,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:43,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:54:43,574 INFO L87 Difference]: Start difference. First operand 2920 states and 4006 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) [2022-11-25 17:54:44,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:44,345 INFO L93 Difference]: Finished difference Result 4260 states and 5889 transitions. [2022-11-25 17:54:44,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:44,346 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 [2022-11-25 17:54:44,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:44,349 INFO L225 Difference]: With dead ends: 4260 [2022-11-25 17:54:44,349 INFO L226 Difference]: Without dead ends: 2926 [2022-11-25 17:54:44,351 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 [2022-11-25 17:54:44,351 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 240 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:44,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 802 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:54:44,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2926 states. [2022-11-25 17:54:45,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2926 to 2920. [2022-11-25 17:54:45,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2916 states have (on average 1.3614540466392318) internal successors, (3970), 2919 states have internal predecessors, (3970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:45,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 3970 transitions. [2022-11-25 17:54:45,074 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 3970 transitions. Word has length 56 [2022-11-25 17:54:45,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:45,074 INFO L495 AbstractCegarLoop]: Abstraction has 2920 states and 3970 transitions. [2022-11-25 17:54:45,075 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) [2022-11-25 17:54:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 3970 transitions. [2022-11-25 17:54:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 17:54:45,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:45,077 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] [2022-11-25 17:54:45,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:54:45,078 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1735355720, now seen corresponding path program 1 times [2022-11-25 17:54:45,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:45,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687150778] [2022-11-25 17:54:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:45,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:45,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:45,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687150778] [2022-11-25 17:54:45,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687150778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:45,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:45,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:54:45,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282385853] [2022-11-25 17:54:45,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:45,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:45,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:45,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:45,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:54:45,140 INFO L87 Difference]: Start difference. First operand 2920 states and 3970 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) [2022-11-25 17:54:46,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:46,093 INFO L93 Difference]: Finished difference Result 4010 states and 5458 transitions. [2022-11-25 17:54:46,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:46,094 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 [2022-11-25 17:54:46,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:46,097 INFO L225 Difference]: With dead ends: 4010 [2022-11-25 17:54:46,098 INFO L226 Difference]: Without dead ends: 2911 [2022-11-25 17:54:46,100 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 [2022-11-25 17:54:46,100 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 259 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:46,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 813 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:54:46,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2022-11-25 17:54:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2905. [2022-11-25 17:54:46,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2905 states, 2901 states have (on average 1.3340227507755946) internal successors, (3870), 2904 states have internal predecessors, (3870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 3870 transitions. [2022-11-25 17:54:46,655 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 3870 transitions. Word has length 56 [2022-11-25 17:54:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:46,656 INFO L495 AbstractCegarLoop]: Abstraction has 2905 states and 3870 transitions. [2022-11-25 17:54:46,656 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) [2022-11-25 17:54:46,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 3870 transitions. [2022-11-25 17:54:46,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-25 17:54:46,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:46,659 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] [2022-11-25 17:54:46,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:54:46,659 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:46,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:46,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1293695138, now seen corresponding path program 1 times [2022-11-25 17:54:46,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:46,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700032062] [2022-11-25 17:54:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:46,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:46,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:46,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700032062] [2022-11-25 17:54:46,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700032062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:46,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:46,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:54:46,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110328549] [2022-11-25 17:54:46,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:46,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:54:46,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:46,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:54:46,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:54:46,735 INFO L87 Difference]: Start difference. First operand 2905 states and 3870 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) [2022-11-25 17:54:47,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:47,603 INFO L93 Difference]: Finished difference Result 4583 states and 6152 transitions. [2022-11-25 17:54:47,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:54:47,604 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 [2022-11-25 17:54:47,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:47,607 INFO L225 Difference]: With dead ends: 4583 [2022-11-25 17:54:47,608 INFO L226 Difference]: Without dead ends: 3323 [2022-11-25 17:54:47,609 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 [2022-11-25 17:54:47,610 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 324 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:47,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 532 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:54:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3323 states. [2022-11-25 17:54:48,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3323 to 2723. [2022-11-25 17:54:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 2719 states have (on average 1.3365207796984184) internal successors, (3634), 2722 states have internal predecessors, (3634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:48,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 3634 transitions. [2022-11-25 17:54:48,164 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 3634 transitions. Word has length 57 [2022-11-25 17:54:48,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:48,165 INFO L495 AbstractCegarLoop]: Abstraction has 2723 states and 3634 transitions. [2022-11-25 17:54:48,165 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) [2022-11-25 17:54:48,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 3634 transitions. [2022-11-25 17:54:48,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:54:48,166 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:48,166 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] [2022-11-25 17:54:48,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:54:48,167 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:48,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:48,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1073895861, now seen corresponding path program 1 times [2022-11-25 17:54:48,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:48,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615522981] [2022-11-25 17:54:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:48,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:48,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:48,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:48,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615522981] [2022-11-25 17:54:48,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615522981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:48,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:48,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 17:54:48,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840726541] [2022-11-25 17:54:48,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:48,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:54:48,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:48,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:54:48,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:54:48,959 INFO L87 Difference]: Start difference. First operand 2723 states and 3634 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) [2022-11-25 17:54:52,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:52,100 INFO L93 Difference]: Finished difference Result 6103 states and 8287 transitions. [2022-11-25 17:54:52,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:54:52,101 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 [2022-11-25 17:54:52,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:52,107 INFO L225 Difference]: With dead ends: 6103 [2022-11-25 17:54:52,107 INFO L226 Difference]: Without dead ends: 5689 [2022-11-25 17:54:52,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:54:52,109 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 2648 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2648 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:52,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2648 Valid, 3188 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 17:54:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2022-11-25 17:54:52,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 2677. [2022-11-25 17:54:52,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2674 states have (on average 1.337696335078534) internal successors, (3577), 2676 states have internal predecessors, (3577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:52,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3577 transitions. [2022-11-25 17:54:52,756 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3577 transitions. Word has length 58 [2022-11-25 17:54:52,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:52,756 INFO L495 AbstractCegarLoop]: Abstraction has 2677 states and 3577 transitions. [2022-11-25 17:54:52,756 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) [2022-11-25 17:54:52,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3577 transitions. [2022-11-25 17:54:52,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:54:52,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:52,758 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] [2022-11-25 17:54:52,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 17:54:52,758 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:52,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:52,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1243428052, now seen corresponding path program 1 times [2022-11-25 17:54:52,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:52,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208536313] [2022-11-25 17:54:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:52,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:53,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:53,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208536313] [2022-11-25 17:54:53,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208536313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:53,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:53,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 17:54:53,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468026325] [2022-11-25 17:54:53,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:53,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:54:53,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:53,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:54:53,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:54:53,444 INFO L87 Difference]: Start difference. First operand 2677 states and 3577 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) [2022-11-25 17:54:56,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:56,103 INFO L93 Difference]: Finished difference Result 5282 states and 7173 transitions. [2022-11-25 17:54:56,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:54:56,103 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 [2022-11-25 17:54:56,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:56,108 INFO L225 Difference]: With dead ends: 5282 [2022-11-25 17:54:56,109 INFO L226 Difference]: Without dead ends: 5171 [2022-11-25 17:54:56,110 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 [2022-11-25 17:54:56,111 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 2433 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:56,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 2713 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:54:56,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5171 states. [2022-11-25 17:54:56,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5171 to 2662. [2022-11-25 17:54:56,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2662 states, 2660 states have (on average 1.33796992481203) internal successors, (3559), 2661 states have internal predecessors, (3559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:56,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2662 states to 2662 states and 3559 transitions. [2022-11-25 17:54:56,760 INFO L78 Accepts]: Start accepts. Automaton has 2662 states and 3559 transitions. Word has length 58 [2022-11-25 17:54:56,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:56,761 INFO L495 AbstractCegarLoop]: Abstraction has 2662 states and 3559 transitions. [2022-11-25 17:54:56,761 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) [2022-11-25 17:54:56,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2662 states and 3559 transitions. [2022-11-25 17:54:56,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-25 17:54:56,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:56,764 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, 1, 1, 1] [2022-11-25 17:54:56,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 17:54:56,764 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:54:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:56,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1779959307, now seen corresponding path program 1 times [2022-11-25 17:54:56,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:54:56,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79150884] [2022-11-25 17:54:56,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:54:56,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:54:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:54:57,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:57,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:54:57,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79150884] [2022-11-25 17:54:57,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79150884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:54:57,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:54:57,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 17:54:57,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588036456] [2022-11-25 17:54:57,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:54:57,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:54:57,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:54:57,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:54:57,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:54:57,316 INFO L87 Difference]: Start difference. First operand 2662 states and 3559 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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) [2022-11-25 17:55:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:00,294 INFO L93 Difference]: Finished difference Result 5380 states and 7290 transitions. [2022-11-25 17:55:00,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 17:55:00,294 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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 [2022-11-25 17:55:00,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:00,299 INFO L225 Difference]: With dead ends: 5380 [2022-11-25 17:55:00,300 INFO L226 Difference]: Without dead ends: 5024 [2022-11-25 17:55:00,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=188, Invalid=462, Unknown=0, NotChecked=0, Total=650 [2022-11-25 17:55:00,303 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 3771 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3771 SdHoareTripleChecker+Valid, 2537 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:00,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3771 Valid, 2537 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 17:55:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2022-11-25 17:55:01,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 2611. [2022-11-25 17:55:01,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2610 states have (on average 1.3398467432950192) internal successors, (3497), 2610 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:01,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3497 transitions. [2022-11-25 17:55:01,133 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3497 transitions. Word has length 58 [2022-11-25 17:55:01,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:01,133 INFO L495 AbstractCegarLoop]: Abstraction has 2611 states and 3497 transitions. [2022-11-25 17:55:01,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 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) [2022-11-25 17:55:01,134 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3497 transitions. [2022-11-25 17:55:01,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 17:55:01,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:01,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:01,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 17:55:01,138 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:55:01,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:01,139 INFO L85 PathProgramCache]: Analyzing trace with hash 590074057, now seen corresponding path program 1 times [2022-11-25 17:55:01,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:01,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57398685] [2022-11-25 17:55:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:01,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:01,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:01,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:01,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57398685] [2022-11-25 17:55:01,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57398685] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:01,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:01,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:55:01,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308282616] [2022-11-25 17:55:01,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:01,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:55:01,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:01,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:55:01,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:55:01,265 INFO L87 Difference]: Start difference. First operand 2611 states and 3497 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:03,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:03,599 INFO L93 Difference]: Finished difference Result 6274 states and 8641 transitions. [2022-11-25 17:55:03,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:55:03,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2022-11-25 17:55:03,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:03,604 INFO L225 Difference]: With dead ends: 6274 [2022-11-25 17:55:03,604 INFO L226 Difference]: Without dead ends: 4715 [2022-11-25 17:55:03,606 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 [2022-11-25 17:55:03,606 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1197 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:03,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 881 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:55:03,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4715 states. [2022-11-25 17:55:04,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4715 to 4058. [2022-11-25 17:55:04,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4058 states, 4057 states have (on average 1.3433571604633967) internal successors, (5450), 4057 states have internal predecessors, (5450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:04,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4058 states to 4058 states and 5450 transitions. [2022-11-25 17:55:04,934 INFO L78 Accepts]: Start accepts. Automaton has 4058 states and 5450 transitions. Word has length 68 [2022-11-25 17:55:04,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:04,934 INFO L495 AbstractCegarLoop]: Abstraction has 4058 states and 5450 transitions. [2022-11-25 17:55:04,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:04,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4058 states and 5450 transitions. [2022-11-25 17:55:04,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 17:55:04,937 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:04,938 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] [2022-11-25 17:55:04,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 17:55:04,938 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:55:04,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:04,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1666510355, now seen corresponding path program 1 times [2022-11-25 17:55:04,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:04,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140496213] [2022-11-25 17:55:04,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:04,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:05,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:05,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140496213] [2022-11-25 17:55:05,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140496213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:05,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:05,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:55:05,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448566160] [2022-11-25 17:55:05,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:05,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:55:05,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:05,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:55:05,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:55:05,075 INFO L87 Difference]: Start difference. First operand 4058 states and 5450 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:06,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:06,957 INFO L93 Difference]: Finished difference Result 4064 states and 5453 transitions. [2022-11-25 17:55:06,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:55:06,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-11-25 17:55:06,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:06,961 INFO L225 Difference]: With dead ends: 4064 [2022-11-25 17:55:06,961 INFO L226 Difference]: Without dead ends: 3565 [2022-11-25 17:55:06,962 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 [2022-11-25 17:55:06,963 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 633 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 847 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 [2022-11-25 17:55:06,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 847 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:55:06,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2022-11-25 17:55:08,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3561. [2022-11-25 17:55:08,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 3560 states have (on average 1.347752808988764) internal successors, (4798), 3560 states have internal predecessors, (4798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:08,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 4798 transitions. [2022-11-25 17:55:08,164 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 4798 transitions. Word has length 69 [2022-11-25 17:55:08,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:08,164 INFO L495 AbstractCegarLoop]: Abstraction has 3561 states and 4798 transitions. [2022-11-25 17:55:08,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:08,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 4798 transitions. [2022-11-25 17:55:08,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-25 17:55:08,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:08,168 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] [2022-11-25 17:55:08,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 17:55:08,169 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:55:08,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:08,169 INFO L85 PathProgramCache]: Analyzing trace with hash -533504505, now seen corresponding path program 1 times [2022-11-25 17:55:08,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:08,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337319738] [2022-11-25 17:55:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:08,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:08,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:08,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:08,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337319738] [2022-11-25 17:55:08,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337319738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:08,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:08,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:55:08,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271083508] [2022-11-25 17:55:08,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:08,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:55:08,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:08,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:55:08,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:08,365 INFO L87 Difference]: Start difference. First operand 3561 states and 4798 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:10,491 INFO L93 Difference]: Finished difference Result 8305 states and 11340 transitions. [2022-11-25 17:55:10,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:55:10,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-11-25 17:55:10,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:10,499 INFO L225 Difference]: With dead ends: 8305 [2022-11-25 17:55:10,499 INFO L226 Difference]: Without dead ends: 5615 [2022-11-25 17:55:10,502 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 [2022-11-25 17:55:10,503 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 139 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:10,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 635 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5615 states. [2022-11-25 17:55:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5615 to 5297. [2022-11-25 17:55:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 5296 states have (on average 1.3402567975830815) internal successors, (7098), 5296 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 7098 transitions. [2022-11-25 17:55:12,505 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 7098 transitions. Word has length 70 [2022-11-25 17:55:12,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:12,505 INFO L495 AbstractCegarLoop]: Abstraction has 5297 states and 7098 transitions. [2022-11-25 17:55:12,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 7098 transitions. [2022-11-25 17:55:12,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 17:55:12,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:12,507 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] [2022-11-25 17:55:12,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 17:55:12,508 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:55:12,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:12,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1110878122, now seen corresponding path program 1 times [2022-11-25 17:55:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:12,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354735191] [2022-11-25 17:55:12,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:12,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:12,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:12,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354735191] [2022-11-25 17:55:12,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354735191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:12,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:12,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:55:12,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394036507] [2022-11-25 17:55:12,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:12,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:55:12,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:12,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:55:12,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:12,616 INFO L87 Difference]: Start difference. First operand 5297 states and 7098 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:16,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:16,378 INFO L93 Difference]: Finished difference Result 13673 states and 18584 transitions. [2022-11-25 17:55:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:55:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-11-25 17:55:16,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:16,391 INFO L225 Difference]: With dead ends: 13673 [2022-11-25 17:55:16,391 INFO L226 Difference]: Without dead ends: 9285 [2022-11-25 17:55:16,394 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 [2022-11-25 17:55:16,395 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 120 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:16,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 629 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2022-11-25 17:55:19,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 8547. [2022-11-25 17:55:19,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8547 states, 8546 states have (on average 1.3433185115843669) internal successors, (11480), 8546 states have internal predecessors, (11480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8547 states to 8547 states and 11480 transitions. [2022-11-25 17:55:19,936 INFO L78 Accepts]: Start accepts. Automaton has 8547 states and 11480 transitions. Word has length 71 [2022-11-25 17:55:19,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:19,937 INFO L495 AbstractCegarLoop]: Abstraction has 8547 states and 11480 transitions. [2022-11-25 17:55:19,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:19,937 INFO L276 IsEmpty]: Start isEmpty. Operand 8547 states and 11480 transitions. [2022-11-25 17:55:19,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 17:55:19,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:19,941 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] [2022-11-25 17:55:19,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 17:55:19,941 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:55:19,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:19,942 INFO L85 PathProgramCache]: Analyzing trace with hash -396168239, now seen corresponding path program 1 times [2022-11-25 17:55:19,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:19,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382769455] [2022-11-25 17:55:19,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:19,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:20,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:20,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382769455] [2022-11-25 17:55:20,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382769455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:20,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:20,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:55:20,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733285887] [2022-11-25 17:55:20,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:20,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:55:20,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:20,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:55:20,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:20,063 INFO L87 Difference]: Start difference. First operand 8547 states and 11480 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) [2022-11-25 17:55:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:26,318 INFO L93 Difference]: Finished difference Result 23023 states and 31122 transitions. [2022-11-25 17:55:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:55:26,318 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 [2022-11-25 17:55:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:26,335 INFO L225 Difference]: With dead ends: 23023 [2022-11-25 17:55:26,335 INFO L226 Difference]: Without dead ends: 15385 [2022-11-25 17:55:26,341 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 [2022-11-25 17:55:26,342 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 102 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:26,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 614 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:26,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15385 states. [2022-11-25 17:55:32,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15385 to 13911. [2022-11-25 17:55:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13911 states, 13910 states have (on average 1.3357296908698777) internal successors, (18580), 13910 states have internal predecessors, (18580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:32,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13911 states to 13911 states and 18580 transitions. [2022-11-25 17:55:32,061 INFO L78 Accepts]: Start accepts. Automaton has 13911 states and 18580 transitions. Word has length 73 [2022-11-25 17:55:32,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:32,061 INFO L495 AbstractCegarLoop]: Abstraction has 13911 states and 18580 transitions. [2022-11-25 17:55:32,061 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) [2022-11-25 17:55:32,062 INFO L276 IsEmpty]: Start isEmpty. Operand 13911 states and 18580 transitions. [2022-11-25 17:55:32,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 17:55:32,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:32,065 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] [2022-11-25 17:55:32,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 17:55:32,065 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:55:32,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:32,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1606128063, now seen corresponding path program 1 times [2022-11-25 17:55:32,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:32,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113606293] [2022-11-25 17:55:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:32,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:32,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:32,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:32,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113606293] [2022-11-25 17:55:32,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113606293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:32,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:32,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:55:32,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485118085] [2022-11-25 17:55:32,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:32,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:55:32,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:32,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:55:32,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:55:32,273 INFO L87 Difference]: Start difference. First operand 13911 states and 18580 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:45,787 INFO L93 Difference]: Finished difference Result 29751 states and 39192 transitions. [2022-11-25 17:55:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:55:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-11-25 17:55:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:45,829 INFO L225 Difference]: With dead ends: 29751 [2022-11-25 17:55:45,830 INFO L226 Difference]: Without dead ends: 29749 [2022-11-25 17:55:45,835 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 [2022-11-25 17:55:45,835 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 370 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:45,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1509 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:55:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29749 states. [2022-11-25 17:55:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29749 to 15255. [2022-11-25 17:55:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15255 states, 15254 states have (on average 1.3061492067654386) internal successors, (19924), 15254 states have internal predecessors, (19924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15255 states to 15255 states and 19924 transitions. [2022-11-25 17:55:53,056 INFO L78 Accepts]: Start accepts. Automaton has 15255 states and 19924 transitions. Word has length 75 [2022-11-25 17:55:53,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:53,056 INFO L495 AbstractCegarLoop]: Abstraction has 15255 states and 19924 transitions. [2022-11-25 17:55:53,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:55:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 15255 states and 19924 transitions. [2022-11-25 17:55:53,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 17:55:53,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:53,059 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] [2022-11-25 17:55:53,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 17:55:53,059 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:55:53,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:53,059 INFO L85 PathProgramCache]: Analyzing trace with hash 824153179, now seen corresponding path program 1 times [2022-11-25 17:55:53,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:53,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051182437] [2022-11-25 17:55:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:53,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:53,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:53,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:53,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051182437] [2022-11-25 17:55:53,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051182437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:53,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:53,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:55:53,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252933286] [2022-11-25 17:55:53,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:53,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:55:53,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:53,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:55:53,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:53,119 INFO L87 Difference]: Start difference. First operand 15255 states and 19924 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:56:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:56:03,231 INFO L93 Difference]: Finished difference Result 36835 states and 48094 transitions. [2022-11-25 17:56:03,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:56:03,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2022-11-25 17:56:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:56:03,263 INFO L225 Difference]: With dead ends: 36835 [2022-11-25 17:56:03,263 INFO L226 Difference]: Without dead ends: 22489 [2022-11-25 17:56:03,274 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 [2022-11-25 17:56:03,275 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 225 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:56:03,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 462 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:56:03,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22489 states. [2022-11-25 17:56:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22489 to 22487. [2022-11-25 17:56:13,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22487 states, 22486 states have (on average 1.289513475051143) internal successors, (28996), 22486 states have internal predecessors, (28996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:56:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22487 states to 22487 states and 28996 transitions. [2022-11-25 17:56:13,248 INFO L78 Accepts]: Start accepts. Automaton has 22487 states and 28996 transitions. Word has length 76 [2022-11-25 17:56:13,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:56:13,248 INFO L495 AbstractCegarLoop]: Abstraction has 22487 states and 28996 transitions. [2022-11-25 17:56:13,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:56:13,249 INFO L276 IsEmpty]: Start isEmpty. Operand 22487 states and 28996 transitions. [2022-11-25 17:56:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 17:56:13,254 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:56:13,254 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] [2022-11-25 17:56:13,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 17:56:13,254 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:56:13,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:56:13,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1756244585, now seen corresponding path program 1 times [2022-11-25 17:56:13,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:56:13,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433223314] [2022-11-25 17:56:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:56:13,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:56:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:13,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:56:13,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:56:13,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433223314] [2022-11-25 17:56:13,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433223314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:56:13,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:56:13,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:56:13,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462080663] [2022-11-25 17:56:13,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:56:13,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:56:13,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:56:13,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:56:13,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:56:13,410 INFO L87 Difference]: Start difference. First operand 22487 states and 28996 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) [2022-11-25 17:56:26,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:56:26,002 INFO L93 Difference]: Finished difference Result 32983 states and 42760 transitions. [2022-11-25 17:56:26,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:56:26,003 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 [2022-11-25 17:56:26,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:56:26,041 INFO L225 Difference]: With dead ends: 32983 [2022-11-25 17:56:26,041 INFO L226 Difference]: Without dead ends: 28121 [2022-11-25 17:56:26,048 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 [2022-11-25 17:56:26,049 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 700 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:56:26,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 963 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:56:26,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28121 states. [2022-11-25 17:56:38,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28121 to 25631. [2022-11-25 17:56:38,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25631 states, 25630 states have (on average 1.2866172454155287) internal successors, (32976), 25630 states have internal predecessors, (32976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:56:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25631 states to 25631 states and 32976 transitions. [2022-11-25 17:56:38,175 INFO L78 Accepts]: Start accepts. Automaton has 25631 states and 32976 transitions. Word has length 77 [2022-11-25 17:56:38,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:56:38,175 INFO L495 AbstractCegarLoop]: Abstraction has 25631 states and 32976 transitions. [2022-11-25 17:56:38,175 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) [2022-11-25 17:56:38,175 INFO L276 IsEmpty]: Start isEmpty. Operand 25631 states and 32976 transitions. [2022-11-25 17:56:38,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-25 17:56:38,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:56:38,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:56:38,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 17:56:38,178 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:56:38,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:56:38,178 INFO L85 PathProgramCache]: Analyzing trace with hash -51175098, now seen corresponding path program 1 times [2022-11-25 17:56:38,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:56:38,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689914071] [2022-11-25 17:56:38,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:56:38,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:56:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:56:38,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:56:38,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689914071] [2022-11-25 17:56:38,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689914071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:56:38,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:56:38,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:56:38,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717608014] [2022-11-25 17:56:38,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:56:38,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:56:38,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:56:38,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:56:38,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:56:38,232 INFO L87 Difference]: Start difference. First operand 25631 states and 32976 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:56:54,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:56:54,941 INFO L93 Difference]: Finished difference Result 50506 states and 65016 transitions. [2022-11-25 17:56:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:56:54,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-11-25 17:56:54,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:56:54,992 INFO L225 Difference]: With dead ends: 50506 [2022-11-25 17:56:54,992 INFO L226 Difference]: Without dead ends: 37808 [2022-11-25 17:56:55,007 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 [2022-11-25 17:56:55,008 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 227 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:56:55,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 364 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:56:55,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37808 states. [2022-11-25 17:57:07,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37808 to 25134. [2022-11-25 17:57:07,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25134 states, 25133 states have (on average 1.283969283412247) internal successors, (32270), 25133 states have internal predecessors, (32270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:57:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25134 states to 25134 states and 32270 transitions. [2022-11-25 17:57:07,072 INFO L78 Accepts]: Start accepts. Automaton has 25134 states and 32270 transitions. Word has length 80 [2022-11-25 17:57:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:57:07,072 INFO L495 AbstractCegarLoop]: Abstraction has 25134 states and 32270 transitions. [2022-11-25 17:57:07,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:57:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 25134 states and 32270 transitions. [2022-11-25 17:57:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 17:57:07,078 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:57:07,078 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:57:07,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 17:57:07,079 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:57:07,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:57:07,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1593588101, now seen corresponding path program 1 times [2022-11-25 17:57:07,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:57:07,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324018593] [2022-11-25 17:57:07,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:57:07,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:57:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:07,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:57:07,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:57:07,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324018593] [2022-11-25 17:57:07,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324018593] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:57:07,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714754202] [2022-11-25 17:57:07,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:57:07,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:57:07,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:57:07,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:57:07,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:57:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:07,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-25 17:57:07,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:57:08,414 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:57:08,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:57:09,097 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:57:09,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714754202] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:57:09,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:57:09,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 7] total 11 [2022-11-25 17:57:09,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112621398] [2022-11-25 17:57:09,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:57:09,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:57:09,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:57:09,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:57:09,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:57:09,101 INFO L87 Difference]: Start difference. First operand 25134 states and 32270 transitions. Second operand has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:57:48,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:57:48,351 INFO L93 Difference]: Finished difference Result 99345 states and 128271 transitions. [2022-11-25 17:57:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:57:48,352 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 0 states have call successors, (0), 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 95 [2022-11-25 17:57:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:57:48,467 INFO L225 Difference]: With dead ends: 99345 [2022-11-25 17:57:48,467 INFO L226 Difference]: Without dead ends: 75007 [2022-11-25 17:57:48,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 180 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:57:48,491 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 861 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:57:48,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1869 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:57:48,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75007 states. [2022-11-25 17:58:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75007 to 69194. [2022-11-25 17:58:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69194 states, 69193 states have (on average 1.282008295636842) internal successors, (88706), 69193 states have internal predecessors, (88706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:58:22,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69194 states to 69194 states and 88706 transitions. [2022-11-25 17:58:22,623 INFO L78 Accepts]: Start accepts. Automaton has 69194 states and 88706 transitions. Word has length 95 [2022-11-25 17:58:22,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:58:22,624 INFO L495 AbstractCegarLoop]: Abstraction has 69194 states and 88706 transitions. [2022-11-25 17:58:22,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 19.09090909090909) internal successors, (210), 11 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:58:22,624 INFO L276 IsEmpty]: Start isEmpty. Operand 69194 states and 88706 transitions. [2022-11-25 17:58:22,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-25 17:58:22,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:58:22,636 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:58:22,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:58:22,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0663ea8-2770-441e-b26a-6a942ea7ded3/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-25 17:58:22,843 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 17:58:22,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:58:22,843 INFO L85 PathProgramCache]: Analyzing trace with hash 442998061, now seen corresponding path program 1 times [2022-11-25 17:58:22,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:58:22,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220102178] [2022-11-25 17:58:22,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:58:22,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:58:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:58:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:58:22,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:58:22,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220102178] [2022-11-25 17:58:22,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220102178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:58:22,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:58:22,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:58:22,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622113857] [2022-11-25 17:58:22,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:58:22,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:58:22,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:58:22,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:58:22,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:58:22,960 INFO L87 Difference]: Start difference. First operand 69194 states and 88706 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)