./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.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_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/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_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/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_24e5432e-31f7-49d2-8074-aed048a6e92d/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 da0a9170cb1355df936e020ec31cd269723d3c83f610103689e93f9c7ac8eb3a --- 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 17:32:37,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:32:37,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:32:37,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:32:37,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:32:37,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:32:37,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:32:37,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:32:37,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:32:38,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:32:38,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:32:38,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:32:38,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:32:38,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:32:38,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:32:38,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:32:38,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:32:38,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:32:38,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:32:38,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:32:38,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:32:38,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:32:38,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:32:38,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:32:38,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:32:38,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:32:38,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:32:38,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:32:38,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:32:38,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:32:38,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:32:38,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:32:38,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:32:38,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:32:38,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:32:38,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:32:38,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:32:38,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:32:38,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:32:38,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:32:38,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:32:38,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:32:38,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:32:38,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:32:38,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:32:38,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:32:38,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:32:38,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:32:38,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:32:38,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:32:38,139 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:32:38,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:32:38,141 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:32:38,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:32:38,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:32:38,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:32:38,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:32:38,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:32:38,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:32:38,143 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:32:38,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:32:38,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:32:38,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:32:38,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:32:38,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:32:38,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:32:38,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:38,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:32:38,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:32:38,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:32:38,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:32:38,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:32:38,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:32:38,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:32:38,150 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:32:38,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:32:38,151 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_24e5432e-31f7-49d2-8074-aed048a6e92d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da0a9170cb1355df936e020ec31cd269723d3c83f610103689e93f9c7ac8eb3a [2022-11-25 17:32:38,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:32:38,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:32:38,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:32:38,560 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:32:38,562 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:32:38,563 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 17:32:42,585 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:32:42,987 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:32:42,988 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 17:32:43,013 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/data/2d12ac878/43dd07d8d9d945e391116a89ddc26ea1/FLAG712b866aa [2022-11-25 17:32:43,034 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/data/2d12ac878/43dd07d8d9d945e391116a89ddc26ea1 [2022-11-25 17:32:43,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:32:43,040 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:32:43,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:43,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:32:43,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:32:43,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:43" (1/1) ... [2022-11-25 17:32:43,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5d4fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:43, skipping insertion in model container [2022-11-25 17:32:43,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:43" (1/1) ... [2022-11-25 17:32:43,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:32:43,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:32:43,566 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14146,14159] [2022-11-25 17:32:43,584 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14793,14806] [2022-11-25 17:32:43,609 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16069,16082] [2022-11-25 17:32:43,627 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17045,17058] [2022-11-25 17:32:43,739 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25516,25529] [2022-11-25 17:32:43,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:43,932 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:32:44,178 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14146,14159] [2022-11-25 17:32:44,221 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14793,14806] [2022-11-25 17:32:44,241 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16069,16082] [2022-11-25 17:32:44,262 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17045,17058] [2022-11-25 17:32:44,322 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_24e5432e-31f7-49d2-8074-aed048a6e92d/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25516,25529] [2022-11-25 17:32:44,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:44,401 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:32:44,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44 WrapperNode [2022-11-25 17:32:44,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:44,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:44,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:32:44,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:32:44,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,539 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1565 [2022-11-25 17:32:44,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:44,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:32:44,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:32:44,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:32:44,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,599 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:32:44,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:32:44,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:32:44,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:32:44,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (1/1) ... [2022-11-25 17:32:44,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:44,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:32:44,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:32:44,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e5432e-31f7-49d2-8074-aed048a6e92d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:32:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:32:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:32:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:32:44,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:32:44,998 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:32:45,000 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:32:46,729 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:32:46,742 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:32:46,742 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:32:46,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:46 BoogieIcfgContainer [2022-11-25 17:32:46,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:32:46,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:32:46,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:32:46,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:32:46,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:32:43" (1/3) ... [2022-11-25 17:32:46,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536ed9e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:46, skipping insertion in model container [2022-11-25 17:32:46,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:44" (2/3) ... [2022-11-25 17:32:46,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536ed9e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:46, skipping insertion in model container [2022-11-25 17:32:46,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:46" (3/3) ... [2022-11-25 17:32:46,757 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-25 17:32:46,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:32:46,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-25 17:32:46,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:32:46,865 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;@478c5d48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:32:46,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-25 17:32:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 388 states, 382 states have (on average 1.824607329842932) internal successors, (697), 387 states have internal predecessors, (697), 0 states have call successors, (0), 0 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 17:32:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 17:32:46,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:46,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:46,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:32:46,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:46,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1860790591, now seen corresponding path program 1 times [2022-11-25 17:32:46,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:46,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727537414] [2022-11-25 17:32:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:46,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:47,832 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 17:32:47,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:47,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727537414] [2022-11-25 17:32:47,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727537414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:47,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:47,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:32:47,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944719705] [2022-11-25 17:32:47,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:47,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:32:47,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:47,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:32:47,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:32:47,889 INFO L87 Difference]: Start difference. First operand has 388 states, 382 states have (on average 1.824607329842932) internal successors, (697), 387 states have internal predecessors, (697), 0 states have call successors, (0), 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 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 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 17:32:48,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:48,157 INFO L93 Difference]: Finished difference Result 717 states and 1276 transitions. [2022-11-25 17:32:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:32:48,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2022-11-25 17:32:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:48,179 INFO L225 Difference]: With dead ends: 717 [2022-11-25 17:32:48,180 INFO L226 Difference]: Without dead ends: 589 [2022-11-25 17:32:48,189 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 17:32:48,195 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 424 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:48,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 1246 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:32:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-11-25 17:32:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 587. [2022-11-25 17:32:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 582 states have (on average 1.4793814432989691) internal successors, (861), 586 states have internal predecessors, (861), 0 states have call successors, (0), 0 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 17:32:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 861 transitions. [2022-11-25 17:32:48,310 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 861 transitions. Word has length 141 [2022-11-25 17:32:48,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:48,311 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 861 transitions. [2022-11-25 17:32:48,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 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 17:32:48,312 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 861 transitions. [2022-11-25 17:32:48,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-25 17:32:48,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:48,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:48,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:32:48,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:32:48,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:48,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1860359615, now seen corresponding path program 1 times [2022-11-25 17:32:48,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:48,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007128730] [2022-11-25 17:32:48,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:48,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:49,073 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 17:32:49,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:49,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007128730] [2022-11-25 17:32:49,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007128730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:49,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:49,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:32:49,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127542593] [2022-11-25 17:32:49,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:49,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:32:49,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:49,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:32:49,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:32:49,090 INFO L87 Difference]: Start difference. First operand 587 states and 861 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 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 17:32:49,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:49,373 INFO L93 Difference]: Finished difference Result 1719 states and 2514 transitions. [2022-11-25 17:32:49,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:32:49,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2022-11-25 17:32:49,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:49,381 INFO L225 Difference]: With dead ends: 1719 [2022-11-25 17:32:49,381 INFO L226 Difference]: Without dead ends: 1141 [2022-11-25 17:32:49,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:32:49,390 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 1099 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:49,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1469 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:32:49,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-11-25 17:32:49,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1103. [2022-11-25 17:32:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 1098 states have (on average 1.4681238615664844) internal successors, (1612), 1102 states have internal predecessors, (1612), 0 states have call successors, (0), 0 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 17:32:49,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1612 transitions. [2022-11-25 17:32:49,541 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1612 transitions. Word has length 141 [2022-11-25 17:32:49,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:49,543 INFO L495 AbstractCegarLoop]: Abstraction has 1103 states and 1612 transitions. [2022-11-25 17:32:49,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 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 17:32:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1612 transitions. [2022-11-25 17:32:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-25 17:32:49,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:49,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:49,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:32:49,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:32:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:49,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1839649003, now seen corresponding path program 1 times [2022-11-25 17:32:49,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:49,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751853278] [2022-11-25 17:32:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:49,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:49,681 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 17:32:49,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:49,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751853278] [2022-11-25 17:32:49,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751853278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:49,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:49,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:32:49,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89491477] [2022-11-25 17:32:49,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:49,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:32:49,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:49,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:32:49,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:32:49,686 INFO L87 Difference]: Start difference. First operand 1103 states and 1612 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 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 17:32:49,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:49,905 INFO L93 Difference]: Finished difference Result 3271 states and 4774 transitions. [2022-11-25 17:32:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:32:49,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-11-25 17:32:49,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:49,916 INFO L225 Difference]: With dead ends: 3271 [2022-11-25 17:32:49,917 INFO L226 Difference]: Without dead ends: 2196 [2022-11-25 17:32:49,919 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 17:32:49,923 INFO L413 NwaCegarLoop]: 1088 mSDtfsCounter, 540 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:49,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1630 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:32:49,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2022-11-25 17:32:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 1105. [2022-11-25 17:32:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1100 states have (on average 1.4672727272727273) internal successors, (1614), 1104 states have internal predecessors, (1614), 0 states have call successors, (0), 0 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 17:32:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1614 transitions. [2022-11-25 17:32:50,077 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1614 transitions. Word has length 142 [2022-11-25 17:32:50,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:50,078 INFO L495 AbstractCegarLoop]: Abstraction has 1105 states and 1614 transitions. [2022-11-25 17:32:50,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 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 17:32:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1614 transitions. [2022-11-25 17:32:50,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-25 17:32:50,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:50,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:50,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:32:50,085 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:32:50,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:50,087 INFO L85 PathProgramCache]: Analyzing trace with hash 734467803, now seen corresponding path program 1 times [2022-11-25 17:32:50,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:50,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750011031] [2022-11-25 17:32:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:50,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:50,249 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 17:32:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:50,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750011031] [2022-11-25 17:32:50,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750011031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:50,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:50,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:32:50,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009446853] [2022-11-25 17:32:50,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:50,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:32:50,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:50,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:32:50,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:32:50,255 INFO L87 Difference]: Start difference. First operand 1105 states and 1614 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 17:32:50,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:50,645 INFO L93 Difference]: Finished difference Result 3075 states and 4501 transitions. [2022-11-25 17:32:50,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:32:50,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-11-25 17:32:50,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:50,657 INFO L225 Difference]: With dead ends: 3075 [2022-11-25 17:32:50,657 INFO L226 Difference]: Without dead ends: 2146 [2022-11-25 17:32:50,660 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 17:32:50,670 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 478 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:50,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1520 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:32:50,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2022-11-25 17:32:51,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 2108. [2022-11-25 17:32:51,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 2103 states have (on average 1.4550641940085591) internal successors, (3060), 2107 states have internal predecessors, (3060), 0 states have call successors, (0), 0 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 17:32:51,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 3060 transitions. [2022-11-25 17:32:51,057 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 3060 transitions. Word has length 143 [2022-11-25 17:32:51,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:51,060 INFO L495 AbstractCegarLoop]: Abstraction has 2108 states and 3060 transitions. [2022-11-25 17:32:51,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 17:32:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 3060 transitions. [2022-11-25 17:32:51,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-25 17:32:51,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:51,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:51,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:32:51,069 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:32:51,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:51,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1947336930, now seen corresponding path program 1 times [2022-11-25 17:32:51,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:51,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159519371] [2022-11-25 17:32:51,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:51,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:51,580 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 17:32:51,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:51,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159519371] [2022-11-25 17:32:51,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159519371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:51,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:51,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:32:51,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640845203] [2022-11-25 17:32:51,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:51,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:32:51,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:51,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:32:51,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:32:51,584 INFO L87 Difference]: Start difference. First operand 2108 states and 3060 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 17:32:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:52,269 INFO L93 Difference]: Finished difference Result 6002 states and 8697 transitions. [2022-11-25 17:32:52,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:32:52,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-11-25 17:32:52,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:52,288 INFO L225 Difference]: With dead ends: 6002 [2022-11-25 17:32:52,288 INFO L226 Difference]: Without dead ends: 3908 [2022-11-25 17:32:52,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:32:52,301 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 1302 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:52,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 1769 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:32:52,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2022-11-25 17:32:52,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3878. [2022-11-25 17:32:52,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3878 states, 3873 states have (on average 1.4366124451329718) internal successors, (5564), 3877 states have internal predecessors, (5564), 0 states have call successors, (0), 0 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 17:32:52,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3878 states to 3878 states and 5564 transitions. [2022-11-25 17:32:52,955 INFO L78 Accepts]: Start accepts. Automaton has 3878 states and 5564 transitions. Word has length 143 [2022-11-25 17:32:52,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:52,956 INFO L495 AbstractCegarLoop]: Abstraction has 3878 states and 5564 transitions. [2022-11-25 17:32:52,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 17:32:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3878 states and 5564 transitions. [2022-11-25 17:32:52,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-25 17:32:52,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:52,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:52,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:32:52,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:32:52,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:52,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1237819550, now seen corresponding path program 1 times [2022-11-25 17:32:52,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:52,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360574638] [2022-11-25 17:32:52,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:52,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:53,338 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 17:32:53,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:53,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360574638] [2022-11-25 17:32:53,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360574638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:53,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:53,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:32:53,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945886564] [2022-11-25 17:32:53,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:53,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:32:53,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:53,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:32:53,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:32:53,341 INFO L87 Difference]: Start difference. First operand 3878 states and 5564 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 17:32:54,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:54,526 INFO L93 Difference]: Finished difference Result 11345 states and 16231 transitions. [2022-11-25 17:32:54,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:32:54,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 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 143 [2022-11-25 17:32:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:54,554 INFO L225 Difference]: With dead ends: 11345 [2022-11-25 17:32:54,554 INFO L226 Difference]: Without dead ends: 7523 [2022-11-25 17:32:54,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:32:54,560 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 1085 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:54,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1460 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:32:54,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7523 states. [2022-11-25 17:32:55,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7523 to 7479. [2022-11-25 17:32:55,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7479 states, 7474 states have (on average 1.420925876371421) internal successors, (10620), 7478 states have internal predecessors, (10620), 0 states have call successors, (0), 0 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 17:32:55,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7479 states to 7479 states and 10620 transitions. [2022-11-25 17:32:55,604 INFO L78 Accepts]: Start accepts. Automaton has 7479 states and 10620 transitions. Word has length 143 [2022-11-25 17:32:55,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:55,604 INFO L495 AbstractCegarLoop]: Abstraction has 7479 states and 10620 transitions. [2022-11-25 17:32:55,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 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 17:32:55,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7479 states and 10620 transitions. [2022-11-25 17:32:55,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 17:32:55,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:55,616 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:55,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:32:55,617 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:32:55,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:55,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1470261354, now seen corresponding path program 1 times [2022-11-25 17:32:55,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:55,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387245462] [2022-11-25 17:32:55,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:55,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:55,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:32:55,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:55,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387245462] [2022-11-25 17:32:55,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387245462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:55,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:55,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:32:55,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550492451] [2022-11-25 17:32:55,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:55,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:32:55,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:55,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:32:55,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:32:55,711 INFO L87 Difference]: Start difference. First operand 7479 states and 10620 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 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 17:32:57,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:32:57,735 INFO L93 Difference]: Finished difference Result 22285 states and 31627 transitions. [2022-11-25 17:32:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:32:57,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2022-11-25 17:32:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:32:57,818 INFO L225 Difference]: With dead ends: 22285 [2022-11-25 17:32:57,818 INFO L226 Difference]: Without dead ends: 14897 [2022-11-25 17:32:57,830 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 17:32:57,832 INFO L413 NwaCegarLoop]: 1074 mSDtfsCounter, 526 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:32:57,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1616 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:32:57,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14897 states. [2022-11-25 17:32:59,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14897 to 7489. [2022-11-25 17:32:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7489 states, 7484 states have (on average 1.4203634420096205) internal successors, (10630), 7488 states have internal predecessors, (10630), 0 states have call successors, (0), 0 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 17:32:59,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7489 states to 7489 states and 10630 transitions. [2022-11-25 17:32:59,354 INFO L78 Accepts]: Start accepts. Automaton has 7489 states and 10630 transitions. Word has length 144 [2022-11-25 17:32:59,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:32:59,354 INFO L495 AbstractCegarLoop]: Abstraction has 7489 states and 10630 transitions. [2022-11-25 17:32:59,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 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 17:32:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 7489 states and 10630 transitions. [2022-11-25 17:32:59,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 17:32:59,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:59,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:59,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:32:59,374 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:32:59,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:59,375 INFO L85 PathProgramCache]: Analyzing trace with hash -671861994, now seen corresponding path program 1 times [2022-11-25 17:32:59,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:59,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189477458] [2022-11-25 17:32:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:32:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:32:59,557 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 17:32:59,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:32:59,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189477458] [2022-11-25 17:32:59,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189477458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:32:59,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:32:59,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:32:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267614529] [2022-11-25 17:32:59,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:32:59,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:32:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:32:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:32:59,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:32:59,562 INFO L87 Difference]: Start difference. First operand 7489 states and 10630 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 17:33:01,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:33:01,812 INFO L93 Difference]: Finished difference Result 21181 states and 30129 transitions. [2022-11-25 17:33:01,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:33:01,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-11-25 17:33:01,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:33:01,853 INFO L225 Difference]: With dead ends: 21181 [2022-11-25 17:33:01,853 INFO L226 Difference]: Without dead ends: 14533 [2022-11-25 17:33:01,865 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 17:33:01,866 INFO L413 NwaCegarLoop]: 1030 mSDtfsCounter, 471 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:33:01,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1541 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:33:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14533 states. [2022-11-25 17:33:04,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14533 to 14489. [2022-11-25 17:33:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14489 states, 14484 states have (on average 1.4052057442695387) internal successors, (20353), 14488 states have internal predecessors, (20353), 0 states have call successors, (0), 0 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 17:33:04,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14489 states to 14489 states and 20353 transitions. [2022-11-25 17:33:04,416 INFO L78 Accepts]: Start accepts. Automaton has 14489 states and 20353 transitions. Word has length 145 [2022-11-25 17:33:04,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:33:04,417 INFO L495 AbstractCegarLoop]: Abstraction has 14489 states and 20353 transitions. [2022-11-25 17:33:04,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 17:33:04,418 INFO L276 IsEmpty]: Start isEmpty. Operand 14489 states and 20353 transitions. [2022-11-25 17:33:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 17:33:04,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:33:04,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:04,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:33:04,446 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:33:04,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:33:04,447 INFO L85 PathProgramCache]: Analyzing trace with hash -720915239, now seen corresponding path program 1 times [2022-11-25 17:33:04,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:33:04,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494632821] [2022-11-25 17:33:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:33:04,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:33:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:33:05,011 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 17:33:05,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:33:05,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494632821] [2022-11-25 17:33:05,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494632821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:33:05,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:33:05,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:33:05,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779041843] [2022-11-25 17:33:05,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:33:05,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:33:05,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:33:05,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:33:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:33:05,016 INFO L87 Difference]: Start difference. First operand 14489 states and 20353 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 17:33:08,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:33:08,387 INFO L93 Difference]: Finished difference Result 38834 states and 54380 transitions. [2022-11-25 17:33:08,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:33:08,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-11-25 17:33:08,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:33:08,462 INFO L225 Difference]: With dead ends: 38834 [2022-11-25 17:33:08,463 INFO L226 Difference]: Without dead ends: 24423 [2022-11-25 17:33:08,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:33:08,486 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 1595 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:33:08,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 1424 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:33:08,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24423 states. [2022-11-25 17:33:11,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24423 to 24397. [2022-11-25 17:33:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24397 states, 24392 states have (on average 1.3795096753033782) internal successors, (33649), 24396 states have internal predecessors, (33649), 0 states have call successors, (0), 0 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 17:33:11,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24397 states to 24397 states and 33649 transitions. [2022-11-25 17:33:11,583 INFO L78 Accepts]: Start accepts. Automaton has 24397 states and 33649 transitions. Word has length 145 [2022-11-25 17:33:11,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:33:11,583 INFO L495 AbstractCegarLoop]: Abstraction has 24397 states and 33649 transitions. [2022-11-25 17:33:11,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 17:33:11,584 INFO L276 IsEmpty]: Start isEmpty. Operand 24397 states and 33649 transitions. [2022-11-25 17:33:11,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 17:33:11,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:33:11,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:11,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:33:11,623 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:33:11,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:33:11,624 INFO L85 PathProgramCache]: Analyzing trace with hash 909534973, now seen corresponding path program 1 times [2022-11-25 17:33:11,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:33:11,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654959386] [2022-11-25 17:33:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:33:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:33:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:33:12,003 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 17:33:12,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:33:12,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654959386] [2022-11-25 17:33:12,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654959386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:33:12,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:33:12,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:33:12,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145850999] [2022-11-25 17:33:12,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:33:12,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:33:12,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:33:12,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:33:12,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:33:12,008 INFO L87 Difference]: Start difference. First operand 24397 states and 33649 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 17:33:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:33:15,311 INFO L93 Difference]: Finished difference Result 49325 states and 67865 transitions. [2022-11-25 17:33:15,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:33:15,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2022-11-25 17:33:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:33:15,383 INFO L225 Difference]: With dead ends: 49325 [2022-11-25 17:33:15,383 INFO L226 Difference]: Without dead ends: 25322 [2022-11-25 17:33:15,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:33:15,411 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 1074 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:33:15,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1444 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:33:15,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25322 states. [2022-11-25 17:33:18,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25322 to 24863. [2022-11-25 17:33:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24863 states, 24858 states have (on average 1.374285944162845) internal successors, (34162), 24862 states have internal predecessors, (34162), 0 states have call successors, (0), 0 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 17:33:19,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24863 states to 24863 states and 34162 transitions. [2022-11-25 17:33:19,033 INFO L78 Accepts]: Start accepts. Automaton has 24863 states and 34162 transitions. Word has length 145 [2022-11-25 17:33:19,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:33:19,033 INFO L495 AbstractCegarLoop]: Abstraction has 24863 states and 34162 transitions. [2022-11-25 17:33:19,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 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 17:33:19,035 INFO L276 IsEmpty]: Start isEmpty. Operand 24863 states and 34162 transitions. [2022-11-25 17:33:19,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-25 17:33:19,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:33:19,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:19,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:33:19,085 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:33:19,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:33:19,087 INFO L85 PathProgramCache]: Analyzing trace with hash -497015959, now seen corresponding path program 1 times [2022-11-25 17:33:19,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:33:19,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990085495] [2022-11-25 17:33:19,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:33:19,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:33:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:33:19,172 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 17:33:19,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:33:19,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990085495] [2022-11-25 17:33:19,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990085495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:33:19,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:33:19,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:33:19,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506931694] [2022-11-25 17:33:19,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:33:19,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:33:19,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:33:19,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:33:19,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:33:19,176 INFO L87 Difference]: Start difference. First operand 24863 states and 34162 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 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 17:33:25,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:33:25,097 INFO L93 Difference]: Finished difference Result 72633 states and 100090 transitions. [2022-11-25 17:33:25,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:33:25,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2022-11-25 17:33:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:33:25,242 INFO L225 Difference]: With dead ends: 72633 [2022-11-25 17:33:25,242 INFO L226 Difference]: Without dead ends: 49312 [2022-11-25 17:33:25,280 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 17:33:25,281 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 512 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:33:25,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1170 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:33:25,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49312 states. [2022-11-25 17:33:28,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49312 to 24903. [2022-11-25 17:33:28,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24903 states, 24898 states have (on average 1.37368463330388) internal successors, (34202), 24902 states have internal predecessors, (34202), 0 states have call successors, (0), 0 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 17:33:28,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24903 states to 24903 states and 34202 transitions. [2022-11-25 17:33:28,952 INFO L78 Accepts]: Start accepts. Automaton has 24903 states and 34202 transitions. Word has length 146 [2022-11-25 17:33:28,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:33:28,952 INFO L495 AbstractCegarLoop]: Abstraction has 24903 states and 34202 transitions. [2022-11-25 17:33:28,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 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 17:33:28,953 INFO L276 IsEmpty]: Start isEmpty. Operand 24903 states and 34202 transitions. [2022-11-25 17:33:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-25 17:33:28,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:33:28,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:28,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:33:28,985 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:33:28,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:33:28,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1442584356, now seen corresponding path program 1 times [2022-11-25 17:33:28,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:33:28,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867825163] [2022-11-25 17:33:28,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:33:28,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:33:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:33:29,342 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 17:33:29,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:33:29,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867825163] [2022-11-25 17:33:29,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867825163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:33:29,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:33:29,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:33:29,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501782279] [2022-11-25 17:33:29,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:33:29,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:33:29,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:33:29,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:33:29,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:33:29,347 INFO L87 Difference]: Start difference. First operand 24903 states and 34202 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 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 17:33:31,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:33:31,487 INFO L93 Difference]: Finished difference Result 40404 states and 55585 transitions. [2022-11-25 17:33:31,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:33:31,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-11-25 17:33:31,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:33:31,525 INFO L225 Difference]: With dead ends: 40404 [2022-11-25 17:33:31,525 INFO L226 Difference]: Without dead ends: 16484 [2022-11-25 17:33:31,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:33:31,543 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 65 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:33:31,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1685 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:33:31,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16484 states. [2022-11-25 17:33:34,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16484 to 16484. [2022-11-25 17:33:34,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16484 states, 16479 states have (on average 1.3683475939073972) internal successors, (22549), 16483 states have internal predecessors, (22549), 0 states have call successors, (0), 0 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 17:33:34,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16484 states to 16484 states and 22549 transitions. [2022-11-25 17:33:34,362 INFO L78 Accepts]: Start accepts. Automaton has 16484 states and 22549 transitions. Word has length 147 [2022-11-25 17:33:34,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:33:34,362 INFO L495 AbstractCegarLoop]: Abstraction has 16484 states and 22549 transitions. [2022-11-25 17:33:34,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 0 states have call successors, (0), 0 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 17:33:34,363 INFO L276 IsEmpty]: Start isEmpty. Operand 16484 states and 22549 transitions. [2022-11-25 17:33:34,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-25 17:33:34,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:33:34,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:34,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:33:34,378 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-11-25 17:33:34,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:33:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1557306087, now seen corresponding path program 1 times [2022-11-25 17:33:34,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:33:34,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728634705] [2022-11-25 17:33:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:33:34,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:33:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:33:34,913 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 17:33:34,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:33:34,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728634705] [2022-11-25 17:33:34,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728634705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:33:34,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:33:34,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:33:34,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305932190] [2022-11-25 17:33:34,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:33:34,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:33:34,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:33:34,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:33:34,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:33:34,916 INFO L87 Difference]: Start difference. First operand 16484 states and 22549 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 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 17:33:38,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:33:38,715 INFO L93 Difference]: Finished difference Result 32605 states and 46325 transitions. [2022-11-25 17:33:38,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:33:38,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 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 155 [2022-11-25 17:33:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:33:38,759 INFO L225 Difference]: With dead ends: 32605 [2022-11-25 17:33:38,759 INFO L226 Difference]: Without dead ends: 26686 [2022-11-25 17:33:38,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:33:38,772 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 911 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:33:38,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 945 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:33:38,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26686 states.