./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b7c220fedd5daa4b7bd4bc3bda2bd43ccc828cdccab93a1f1d73e2bd64ffc19c --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 19:09:25,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 19:09:25,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 19:09:25,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 19:09:25,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 19:09:25,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 19:09:25,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 19:09:25,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 19:09:25,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 19:09:25,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 19:09:25,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 19:09:25,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 19:09:25,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 19:09:25,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 19:09:25,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 19:09:25,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 19:09:25,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 19:09:25,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 19:09:25,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 19:09:25,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 19:09:25,483 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 19:09:25,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 19:09:25,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 19:09:25,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 19:09:25,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 19:09:25,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 19:09:25,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 19:09:25,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 19:09:25,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 19:09:25,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 19:09:25,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 19:09:25,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 19:09:25,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 19:09:25,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 19:09:25,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 19:09:25,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 19:09:25,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 19:09:25,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 19:09:25,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 19:09:25,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 19:09:25,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 19:09:25,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 19:09:25,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 19:09:25,537 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 19:09:25,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 19:09:25,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 19:09:25,538 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 19:09:25,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 19:09:25,539 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 19:09:25,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 19:09:25,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 19:09:25,540 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 19:09:25,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 19:09:25,541 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 19:09:25,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 19:09:25,541 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 19:09:25,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 19:09:25,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 19:09:25,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 19:09:25,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 19:09:25,542 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 19:09:25,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 19:09:25,544 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 19:09:25,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 19:09:25,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 19:09:25,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 19:09:25,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 19:09:25,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:09:25,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 19:09:25,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 19:09:25,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 19:09:25,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 19:09:25,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 19:09:25,546 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 19:09:25,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 19:09:25,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 19:09:25,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7c220fedd5daa4b7bd4bc3bda2bd43ccc828cdccab93a1f1d73e2bd64ffc19c [2022-07-13 19:09:25,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 19:09:25,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 19:09:25,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 19:09:25,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 19:09:25,763 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 19:09:25,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-13 19:09:25,817 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b308216b8/66b58481687c4bb3a7821f69afc6c44d/FLAGa79ff38dd [2022-07-13 19:09:26,367 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 19:09:26,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-13 19:09:26,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b308216b8/66b58481687c4bb3a7821f69afc6c44d/FLAGa79ff38dd [2022-07-13 19:09:26,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b308216b8/66b58481687c4bb3a7821f69afc6c44d [2022-07-13 19:09:26,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 19:09:26,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 19:09:26,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 19:09:26,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 19:09:26,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 19:09:26,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:09:26" (1/1) ... [2022-07-13 19:09:26,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295c353a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:26, skipping insertion in model container [2022-07-13 19:09:26,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:09:26" (1/1) ... [2022-07-13 19:09:26,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 19:09:26,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 19:09:27,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2022-07-13 19:09:27,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2022-07-13 19:09:27,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2022-07-13 19:09:27,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2022-07-13 19:09:27,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2022-07-13 19:09:27,473 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2022-07-13 19:09:27,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2022-07-13 19:09:27,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2022-07-13 19:09:27,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2022-07-13 19:09:27,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2022-07-13 19:09:27,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2022-07-13 19:09:27,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2022-07-13 19:09:27,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2022-07-13 19:09:27,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2022-07-13 19:09:27,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2022-07-13 19:09:27,786 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2022-07-13 19:09:27,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2022-07-13 19:09:27,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2022-07-13 19:09:27,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2022-07-13 19:09:27,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2022-07-13 19:09:27,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2022-07-13 19:09:27,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2022-07-13 19:09:27,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:09:27,883 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 19:09:28,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69402,69415] [2022-07-13 19:09:28,151 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[100988,101001] [2022-07-13 19:09:28,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[116766,116779] [2022-07-13 19:09:28,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[124651,124664] [2022-07-13 19:09:28,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[128577,128590] [2022-07-13 19:09:28,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132299,132312] [2022-07-13 19:09:28,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[163377,163390] [2022-07-13 19:09:28,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[178940,178953] [2022-07-13 19:09:28,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[186820,186833] [2022-07-13 19:09:28,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[190741,190754] [2022-07-13 19:09:28,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[194458,194471] [2022-07-13 19:09:28,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211203,211216] [2022-07-13 19:09:28,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[219083,219096] [2022-07-13 19:09:28,367 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223004,223017] [2022-07-13 19:09:28,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226721,226734] [2022-07-13 19:09:28,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[231221,231234] [2022-07-13 19:09:28,388 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[234989,235002] [2022-07-13 19:09:28,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[238910,238923] [2022-07-13 19:09:28,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[242627,242640] [2022-07-13 19:09:28,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[246748,246761] [2022-07-13 19:09:28,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[250481,250494] [2022-07-13 19:09:28,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[254398,254411] [2022-07-13 19:09:28,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:09:28,477 INFO L208 MainTranslator]: Completed translation [2022-07-13 19:09:28,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28 WrapperNode [2022-07-13 19:09:28,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 19:09:28,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 19:09:28,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 19:09:28,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 19:09:28,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:28,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:28,705 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11455 [2022-07-13 19:09:28,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 19:09:28,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 19:09:28,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 19:09:28,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 19:09:28,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:28,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:28,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:28,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:28,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:28,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:28,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:29,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 19:09:29,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 19:09:29,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 19:09:29,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 19:09:29,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (1/1) ... [2022-07-13 19:09:29,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:09:29,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 19:09:29,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 19:09:29,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 19:09:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 19:09:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 19:09:29,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 19:09:29,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 19:09:29,380 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 19:09:29,381 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 19:09:32,734 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 19:09:32,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 19:09:32,755 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 19:09:32,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:09:32 BoogieIcfgContainer [2022-07-13 19:09:32,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 19:09:32,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 19:09:32,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 19:09:32,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 19:09:32,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 07:09:26" (1/3) ... [2022-07-13 19:09:32,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58017a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:09:32, skipping insertion in model container [2022-07-13 19:09:32,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:09:28" (2/3) ... [2022-07-13 19:09:32,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58017a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:09:32, skipping insertion in model container [2022-07-13 19:09:32,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:09:32" (3/3) ... [2022-07-13 19:09:32,763 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-13 19:09:32,772 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 19:09:32,773 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-07-13 19:09:32,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 19:09:32,829 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2235bf2e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@727b0742 [2022-07-13 19:09:32,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-07-13 19:09:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 2348 states, 2325 states have (on average 1.821505376344086) internal successors, (4235), 2347 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 19:09:32,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:32,855 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] [2022-07-13 19:09:32,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:32,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:32,859 INFO L85 PathProgramCache]: Analyzing trace with hash 945954769, now seen corresponding path program 1 times [2022-07-13 19:09:32,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:32,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476205985] [2022-07-13 19:09:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:32,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:33,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:33,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:33,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476205985] [2022-07-13 19:09:33,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476205985] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:33,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:33,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:09:33,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963279681] [2022-07-13 19:09:33,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:33,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:09:33,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:09:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:09:33,159 INFO L87 Difference]: Start difference. First operand has 2348 states, 2325 states have (on average 1.821505376344086) internal successors, (4235), 2347 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:34,109 INFO L93 Difference]: Finished difference Result 2546 states and 4528 transitions. [2022-07-13 19:09:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:09:34,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-07-13 19:09:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:34,123 INFO L225 Difference]: With dead ends: 2546 [2022-07-13 19:09:34,124 INFO L226 Difference]: Without dead ends: 1401 [2022-07-13 19:09:34,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:09:34,130 INFO L413 NwaCegarLoop]: 1367 mSDtfsCounter, 7221 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7221 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:34,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7221 Valid, 1445 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:09:34,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2022-07-13 19:09:34,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1401. [2022-07-13 19:09:34,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1379 states have (on average 1.3038433647570704) internal successors, (1798), 1400 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:34,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1798 transitions. [2022-07-13 19:09:34,253 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1798 transitions. Word has length 86 [2022-07-13 19:09:34,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:34,254 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 1798 transitions. [2022-07-13 19:09:34,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:34,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1798 transitions. [2022-07-13 19:09:34,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 19:09:34,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:34,257 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] [2022-07-13 19:09:34,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 19:09:34,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:34,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:34,258 INFO L85 PathProgramCache]: Analyzing trace with hash -340795257, now seen corresponding path program 1 times [2022-07-13 19:09:34,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:34,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261500998] [2022-07-13 19:09:34,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:34,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:34,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:34,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:34,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261500998] [2022-07-13 19:09:34,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261500998] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:34,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:34,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:09:34,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95295616] [2022-07-13 19:09:34,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:34,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:09:34,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:34,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:09:34,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:09:34,362 INFO L87 Difference]: Start difference. First operand 1401 states and 1798 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:34,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:34,860 INFO L93 Difference]: Finished difference Result 1672 states and 2149 transitions. [2022-07-13 19:09:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:09:34,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-07-13 19:09:34,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:34,864 INFO L225 Difference]: With dead ends: 1672 [2022-07-13 19:09:34,865 INFO L226 Difference]: Without dead ends: 969 [2022-07-13 19:09:34,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:09:34,870 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 3649 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:34,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3649 Valid, 654 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:09:34,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2022-07-13 19:09:34,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2022-07-13 19:09:34,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.3231256599788808) internal successors, (1253), 968 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1253 transitions. [2022-07-13 19:09:34,909 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1253 transitions. Word has length 86 [2022-07-13 19:09:34,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:34,911 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1253 transitions. [2022-07-13 19:09:34,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:34,911 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1253 transitions. [2022-07-13 19:09:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-13 19:09:34,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:34,913 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] [2022-07-13 19:09:34,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 19:09:34,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:34,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:34,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1383981291, now seen corresponding path program 1 times [2022-07-13 19:09:34,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:34,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037964217] [2022-07-13 19:09:34,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:34,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:35,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:35,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037964217] [2022-07-13 19:09:35,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037964217] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:35,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:35,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:09:35,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41926234] [2022-07-13 19:09:35,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:35,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:09:35,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:35,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:09:35,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:09:35,072 INFO L87 Difference]: Start difference. First operand 969 states and 1253 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:35,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:35,529 INFO L93 Difference]: Finished difference Result 1343 states and 1758 transitions. [2022-07-13 19:09:35,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:09:35,530 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-07-13 19:09:35,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:35,533 INFO L225 Difference]: With dead ends: 1343 [2022-07-13 19:09:35,533 INFO L226 Difference]: Without dead ends: 828 [2022-07-13 19:09:35,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:09:35,538 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 3206 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3206 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:35,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3206 Valid, 571 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:09:35,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2022-07-13 19:09:35,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2022-07-13 19:09:35,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 806 states have (on average 1.3535980148883375) internal successors, (1091), 827 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:35,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1091 transitions. [2022-07-13 19:09:35,604 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1091 transitions. Word has length 86 [2022-07-13 19:09:35,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:35,604 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1091 transitions. [2022-07-13 19:09:35,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1091 transitions. [2022-07-13 19:09:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-13 19:09:35,606 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:35,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:09:35,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 19:09:35,606 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:35,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:35,607 INFO L85 PathProgramCache]: Analyzing trace with hash -100915319, now seen corresponding path program 1 times [2022-07-13 19:09:35,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:35,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390830650] [2022-07-13 19:09:35,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:35,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:35,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:35,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:35,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390830650] [2022-07-13 19:09:35,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390830650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:35,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:35,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:09:35,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452718060] [2022-07-13 19:09:35,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:35,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:09:35,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:35,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:09:35,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:09:35,667 INFO L87 Difference]: Start difference. First operand 828 states and 1091 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:36,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:36,088 INFO L93 Difference]: Finished difference Result 1171 states and 1548 transitions. [2022-07-13 19:09:36,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:09:36,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-07-13 19:09:36,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:36,092 INFO L225 Difference]: With dead ends: 1171 [2022-07-13 19:09:36,092 INFO L226 Difference]: Without dead ends: 727 [2022-07-13 19:09:36,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:09:36,093 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 2823 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:36,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 528 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:09:36,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-13 19:09:36,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2022-07-13 19:09:36,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 705 states have (on average 1.371631205673759) internal successors, (967), 726 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:36,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 967 transitions. [2022-07-13 19:09:36,117 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 967 transitions. Word has length 87 [2022-07-13 19:09:36,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:36,117 INFO L495 AbstractCegarLoop]: Abstraction has 727 states and 967 transitions. [2022-07-13 19:09:36,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:36,118 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 967 transitions. [2022-07-13 19:09:36,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-13 19:09:36,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:36,124 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] [2022-07-13 19:09:36,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 19:09:36,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:36,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash -881369892, now seen corresponding path program 1 times [2022-07-13 19:09:36,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:36,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475179160] [2022-07-13 19:09:36,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:36,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:36,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:36,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475179160] [2022-07-13 19:09:36,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475179160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:36,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:36,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:09:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574426999] [2022-07-13 19:09:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:36,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:09:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:09:36,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:09:36,227 INFO L87 Difference]: Start difference. First operand 727 states and 967 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:36,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:36,583 INFO L93 Difference]: Finished difference Result 1038 states and 1379 transitions. [2022-07-13 19:09:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:09:36,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-07-13 19:09:36,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:36,585 INFO L225 Difference]: With dead ends: 1038 [2022-07-13 19:09:36,585 INFO L226 Difference]: Without dead ends: 646 [2022-07-13 19:09:36,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:09:36,586 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 2497 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2497 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:36,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2497 Valid, 495 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:09:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2022-07-13 19:09:36,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2022-07-13 19:09:36,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3814102564102564) internal successors, (862), 645 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 862 transitions. [2022-07-13 19:09:36,609 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 862 transitions. Word has length 88 [2022-07-13 19:09:36,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:36,610 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 862 transitions. [2022-07-13 19:09:36,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 862 transitions. [2022-07-13 19:09:36,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-13 19:09:36,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:36,612 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] [2022-07-13 19:09:36,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 19:09:36,612 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:36,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:36,613 INFO L85 PathProgramCache]: Analyzing trace with hash -15019222, now seen corresponding path program 1 times [2022-07-13 19:09:36,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:36,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873646656] [2022-07-13 19:09:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:36,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:36,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:36,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873646656] [2022-07-13 19:09:36,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873646656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:36,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:36,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 19:09:36,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104256050] [2022-07-13 19:09:36,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:36,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:09:36,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:36,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:09:36,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:09:36,695 INFO L87 Difference]: Start difference. First operand 646 states and 862 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:37,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:37,166 INFO L93 Difference]: Finished difference Result 992 states and 1329 transitions. [2022-07-13 19:09:37,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 19:09:37,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2022-07-13 19:09:37,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:37,169 INFO L225 Difference]: With dead ends: 992 [2022-07-13 19:09:37,169 INFO L226 Difference]: Without dead ends: 638 [2022-07-13 19:09:37,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:09:37,171 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 2350 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:37,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2350 Valid, 420 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:09:37,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-07-13 19:09:37,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2022-07-13 19:09:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3831168831168832) internal successors, (852), 637 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 852 transitions. [2022-07-13 19:09:37,193 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 852 transitions. Word has length 89 [2022-07-13 19:09:37,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:37,194 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 852 transitions. [2022-07-13 19:09:37,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:37,195 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 852 transitions. [2022-07-13 19:09:37,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-13 19:09:37,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:37,196 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] [2022-07-13 19:09:37,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 19:09:37,197 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:37,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:37,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1223915583, now seen corresponding path program 1 times [2022-07-13 19:09:37,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:37,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832897223] [2022-07-13 19:09:37,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:37,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:37,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:37,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832897223] [2022-07-13 19:09:37,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832897223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:37,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:37,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:37,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816719466] [2022-07-13 19:09:37,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:37,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:37,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:37,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:37,354 INFO L87 Difference]: Start difference. First operand 638 states and 852 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:38,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:38,286 INFO L93 Difference]: Finished difference Result 1329 states and 1815 transitions. [2022-07-13 19:09:38,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:38,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-07-13 19:09:38,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:38,290 INFO L225 Difference]: With dead ends: 1329 [2022-07-13 19:09:38,290 INFO L226 Difference]: Without dead ends: 1137 [2022-07-13 19:09:38,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:38,291 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 4080 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4080 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:38,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4080 Valid, 2126 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:09:38,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-07-13 19:09:38,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 638. [2022-07-13 19:09:38,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3814935064935066) internal successors, (851), 637 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:38,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 851 transitions. [2022-07-13 19:09:38,319 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 851 transitions. Word has length 90 [2022-07-13 19:09:38,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:38,319 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 851 transitions. [2022-07-13 19:09:38,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:38,319 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 851 transitions. [2022-07-13 19:09:38,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-13 19:09:38,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:38,321 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] [2022-07-13 19:09:38,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 19:09:38,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:38,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:38,321 INFO L85 PathProgramCache]: Analyzing trace with hash -774148364, now seen corresponding path program 1 times [2022-07-13 19:09:38,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:38,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793934740] [2022-07-13 19:09:38,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:38,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:38,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:38,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793934740] [2022-07-13 19:09:38,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793934740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:38,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:38,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:38,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122697029] [2022-07-13 19:09:38,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:38,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:38,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:38,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:38,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:38,416 INFO L87 Difference]: Start difference. First operand 638 states and 851 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:39,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:39,502 INFO L93 Difference]: Finished difference Result 1256 states and 1718 transitions. [2022-07-13 19:09:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:39,503 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-07-13 19:09:39,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:39,506 INFO L225 Difference]: With dead ends: 1256 [2022-07-13 19:09:39,506 INFO L226 Difference]: Without dead ends: 1132 [2022-07-13 19:09:39,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:39,507 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 2425 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 2076 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:39,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2425 Valid, 2584 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2076 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:09:39,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-07-13 19:09:39,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 638. [2022-07-13 19:09:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.37987012987013) internal successors, (850), 637 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:39,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 850 transitions. [2022-07-13 19:09:39,539 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 850 transitions. Word has length 90 [2022-07-13 19:09:39,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:39,540 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 850 transitions. [2022-07-13 19:09:39,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:39,540 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 850 transitions. [2022-07-13 19:09:39,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-13 19:09:39,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:39,541 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] [2022-07-13 19:09:39,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 19:09:39,541 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:39,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:39,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1127184379, now seen corresponding path program 1 times [2022-07-13 19:09:39,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:39,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127914692] [2022-07-13 19:09:39,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:39,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:39,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:39,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:39,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127914692] [2022-07-13 19:09:39,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127914692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:39,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:39,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:09:39,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497737671] [2022-07-13 19:09:39,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:39,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:09:39,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:39,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:09:39,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:09:39,636 INFO L87 Difference]: Start difference. First operand 638 states and 850 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:40,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:40,279 INFO L93 Difference]: Finished difference Result 1201 states and 1560 transitions. [2022-07-13 19:09:40,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 19:09:40,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-07-13 19:09:40,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:40,282 INFO L225 Difference]: With dead ends: 1201 [2022-07-13 19:09:40,282 INFO L226 Difference]: Without dead ends: 855 [2022-07-13 19:09:40,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-13 19:09:40,283 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 4361 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4361 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:40,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4361 Valid, 1030 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:09:40,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2022-07-13 19:09:40,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 638. [2022-07-13 19:09:40,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3782467532467533) internal successors, (849), 637 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:40,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 849 transitions. [2022-07-13 19:09:40,316 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 849 transitions. Word has length 90 [2022-07-13 19:09:40,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:40,316 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 849 transitions. [2022-07-13 19:09:40,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:40,316 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 849 transitions. [2022-07-13 19:09:40,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-13 19:09:40,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:40,317 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] [2022-07-13 19:09:40,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 19:09:40,318 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:40,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:40,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1374831072, now seen corresponding path program 1 times [2022-07-13 19:09:40,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:40,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294850799] [2022-07-13 19:09:40,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:40,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:40,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:40,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:40,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294850799] [2022-07-13 19:09:40,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294850799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:40,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:40,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:40,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203034374] [2022-07-13 19:09:40,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:40,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:40,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:40,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:40,432 INFO L87 Difference]: Start difference. First operand 638 states and 849 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:41,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:41,526 INFO L93 Difference]: Finished difference Result 1224 states and 1662 transitions. [2022-07-13 19:09:41,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:41,527 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-13 19:09:41,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:41,530 INFO L225 Difference]: With dead ends: 1224 [2022-07-13 19:09:41,530 INFO L226 Difference]: Without dead ends: 1125 [2022-07-13 19:09:41,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 19:09:41,531 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 4780 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4780 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:41,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4780 Valid, 2412 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:09:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-07-13 19:09:41,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2022-07-13 19:09:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3766233766233766) internal successors, (848), 637 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:41,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 848 transitions. [2022-07-13 19:09:41,590 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 848 transitions. Word has length 92 [2022-07-13 19:09:41,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:41,591 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 848 transitions. [2022-07-13 19:09:41,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 848 transitions. [2022-07-13 19:09:41,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-13 19:09:41,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:41,592 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] [2022-07-13 19:09:41,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 19:09:41,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:41,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:41,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1581467239, now seen corresponding path program 1 times [2022-07-13 19:09:41,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:41,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332446455] [2022-07-13 19:09:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:41,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:41,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:41,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332446455] [2022-07-13 19:09:41,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332446455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:41,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:41,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:41,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634031228] [2022-07-13 19:09:41,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:41,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:41,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:41,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:41,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:41,707 INFO L87 Difference]: Start difference. First operand 638 states and 848 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:42,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:42,584 INFO L93 Difference]: Finished difference Result 1270 states and 1726 transitions. [2022-07-13 19:09:42,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:42,584 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-13 19:09:42,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:42,593 INFO L225 Difference]: With dead ends: 1270 [2022-07-13 19:09:42,593 INFO L226 Difference]: Without dead ends: 1132 [2022-07-13 19:09:42,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:42,608 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 4655 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4655 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:42,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4655 Valid, 2619 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:09:42,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-07-13 19:09:42,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 638. [2022-07-13 19:09:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.375) internal successors, (847), 637 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:42,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 847 transitions. [2022-07-13 19:09:42,682 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 847 transitions. Word has length 92 [2022-07-13 19:09:42,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:42,682 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 847 transitions. [2022-07-13 19:09:42,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:42,683 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 847 transitions. [2022-07-13 19:09:42,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-13 19:09:42,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:42,684 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] [2022-07-13 19:09:42,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 19:09:42,684 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:42,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:42,685 INFO L85 PathProgramCache]: Analyzing trace with hash 510204798, now seen corresponding path program 1 times [2022-07-13 19:09:42,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:42,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100529888] [2022-07-13 19:09:42,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:42,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:42,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:42,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:42,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100529888] [2022-07-13 19:09:42,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100529888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:42,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:42,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:42,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578844265] [2022-07-13 19:09:42,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:42,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:42,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:42,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:42,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:42,790 INFO L87 Difference]: Start difference. First operand 638 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:43,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:43,922 INFO L93 Difference]: Finished difference Result 1359 states and 1835 transitions. [2022-07-13 19:09:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:43,923 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-13 19:09:43,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:43,926 INFO L225 Difference]: With dead ends: 1359 [2022-07-13 19:09:43,928 INFO L226 Difference]: Without dead ends: 1137 [2022-07-13 19:09:43,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:43,930 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 4070 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4070 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:43,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4070 Valid, 2857 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:09:43,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2022-07-13 19:09:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 638. [2022-07-13 19:09:43,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3733766233766234) internal successors, (846), 637 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 846 transitions. [2022-07-13 19:09:43,994 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 846 transitions. Word has length 92 [2022-07-13 19:09:43,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:43,994 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 846 transitions. [2022-07-13 19:09:43,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:43,995 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 846 transitions. [2022-07-13 19:09:43,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-13 19:09:43,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:43,996 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] [2022-07-13 19:09:43,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 19:09:43,996 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:43,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:43,997 INFO L85 PathProgramCache]: Analyzing trace with hash -496473703, now seen corresponding path program 1 times [2022-07-13 19:09:43,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:43,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533556673] [2022-07-13 19:09:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:43,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:44,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:44,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533556673] [2022-07-13 19:09:44,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533556673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:44,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:44,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:44,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595666216] [2022-07-13 19:09:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:44,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:44,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:44,082 INFO L87 Difference]: Start difference. First operand 638 states and 846 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:45,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:45,208 INFO L93 Difference]: Finished difference Result 1224 states and 1659 transitions. [2022-07-13 19:09:45,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:45,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-13 19:09:45,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:45,211 INFO L225 Difference]: With dead ends: 1224 [2022-07-13 19:09:45,211 INFO L226 Difference]: Without dead ends: 1125 [2022-07-13 19:09:45,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:45,212 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 4610 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4610 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:45,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4610 Valid, 2694 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:09:45,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-07-13 19:09:45,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2022-07-13 19:09:45,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3717532467532467) internal successors, (845), 637 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:45,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 845 transitions. [2022-07-13 19:09:45,279 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 845 transitions. Word has length 92 [2022-07-13 19:09:45,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:45,279 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 845 transitions. [2022-07-13 19:09:45,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:45,280 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 845 transitions. [2022-07-13 19:09:45,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-13 19:09:45,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:45,281 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] [2022-07-13 19:09:45,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 19:09:45,281 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:45,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:45,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2138746040, now seen corresponding path program 1 times [2022-07-13 19:09:45,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:45,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840695289] [2022-07-13 19:09:45,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:45,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:45,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:45,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840695289] [2022-07-13 19:09:45,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840695289] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:45,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:45,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:45,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068111135] [2022-07-13 19:09:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:45,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:45,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:45,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:45,404 INFO L87 Difference]: Start difference. First operand 638 states and 845 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:46,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:46,509 INFO L93 Difference]: Finished difference Result 1219 states and 1653 transitions. [2022-07-13 19:09:46,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:46,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-13 19:09:46,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:46,514 INFO L225 Difference]: With dead ends: 1219 [2022-07-13 19:09:46,514 INFO L226 Difference]: Without dead ends: 1125 [2022-07-13 19:09:46,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 19:09:46,515 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 4568 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4568 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 2156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:46,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4568 Valid, 2559 Invalid, 2156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:09:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-07-13 19:09:46,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2022-07-13 19:09:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.37012987012987) internal successors, (844), 637 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 844 transitions. [2022-07-13 19:09:46,565 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 844 transitions. Word has length 92 [2022-07-13 19:09:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:46,565 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 844 transitions. [2022-07-13 19:09:46,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:46,566 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 844 transitions. [2022-07-13 19:09:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-13 19:09:46,576 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:46,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:09:46,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 19:09:46,577 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:46,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1951823708, now seen corresponding path program 1 times [2022-07-13 19:09:46,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:46,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900523448] [2022-07-13 19:09:46,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:46,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:46,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:46,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900523448] [2022-07-13 19:09:46,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900523448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:46,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:46,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:46,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618089843] [2022-07-13 19:09:46,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:46,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:46,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:46,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:46,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:46,680 INFO L87 Difference]: Start difference. First operand 638 states and 844 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:47,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:47,788 INFO L93 Difference]: Finished difference Result 1224 states and 1657 transitions. [2022-07-13 19:09:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-13 19:09:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:47,792 INFO L225 Difference]: With dead ends: 1224 [2022-07-13 19:09:47,792 INFO L226 Difference]: Without dead ends: 1125 [2022-07-13 19:09:47,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 19:09:47,795 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 4517 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 2083 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4517 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:47,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4517 Valid, 2589 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2083 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:09:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-07-13 19:09:47,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2022-07-13 19:09:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3685064935064934) internal successors, (843), 637 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 843 transitions. [2022-07-13 19:09:47,844 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 843 transitions. Word has length 92 [2022-07-13 19:09:47,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:47,844 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 843 transitions. [2022-07-13 19:09:47,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:47,845 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 843 transitions. [2022-07-13 19:09:47,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-13 19:09:47,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:47,846 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] [2022-07-13 19:09:47,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 19:09:47,846 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:47,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:47,847 INFO L85 PathProgramCache]: Analyzing trace with hash -761353428, now seen corresponding path program 1 times [2022-07-13 19:09:47,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:47,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788660043] [2022-07-13 19:09:47,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:47,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:47,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:47,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:47,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788660043] [2022-07-13 19:09:47,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788660043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:47,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:47,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:47,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227808576] [2022-07-13 19:09:47,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:47,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:47,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:47,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:47,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:47,925 INFO L87 Difference]: Start difference. First operand 638 states and 843 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:48,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:48,861 INFO L93 Difference]: Finished difference Result 1270 states and 1723 transitions. [2022-07-13 19:09:48,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:48,862 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-07-13 19:09:48,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:48,865 INFO L225 Difference]: With dead ends: 1270 [2022-07-13 19:09:48,865 INFO L226 Difference]: Without dead ends: 1132 [2022-07-13 19:09:48,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:48,866 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 2879 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 2613 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2879 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:48,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2879 Valid, 3322 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2613 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:09:48,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-07-13 19:09:48,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 638. [2022-07-13 19:09:48,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3668831168831168) internal successors, (842), 637 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:48,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 842 transitions. [2022-07-13 19:09:48,914 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 842 transitions. Word has length 92 [2022-07-13 19:09:48,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:48,915 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 842 transitions. [2022-07-13 19:09:48,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:48,915 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 842 transitions. [2022-07-13 19:09:48,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:09:48,916 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:48,916 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] [2022-07-13 19:09:48,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 19:09:48,917 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:48,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:48,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1776369767, now seen corresponding path program 1 times [2022-07-13 19:09:48,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:48,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313764100] [2022-07-13 19:09:48,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:48,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:49,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:49,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313764100] [2022-07-13 19:09:49,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313764100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:49,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:49,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:49,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000405980] [2022-07-13 19:09:49,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:49,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:49,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:49,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:49,004 INFO L87 Difference]: Start difference. First operand 638 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:49,751 INFO L93 Difference]: Finished difference Result 1233 states and 1663 transitions. [2022-07-13 19:09:49,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:49,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:09:49,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:49,755 INFO L225 Difference]: With dead ends: 1233 [2022-07-13 19:09:49,755 INFO L226 Difference]: Without dead ends: 1125 [2022-07-13 19:09:49,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-13 19:09:49,756 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 4640 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4640 SdHoareTripleChecker+Valid, 2635 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:49,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4640 Valid, 2635 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:09:49,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-07-13 19:09:49,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2022-07-13 19:09:49,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3652597402597402) internal successors, (841), 637 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:49,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 841 transitions. [2022-07-13 19:09:49,837 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 841 transitions. Word has length 94 [2022-07-13 19:09:49,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:49,837 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 841 transitions. [2022-07-13 19:09:49,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:49,838 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 841 transitions. [2022-07-13 19:09:49,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:09:49,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:49,839 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] [2022-07-13 19:09:49,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 19:09:49,839 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:49,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:49,840 INFO L85 PathProgramCache]: Analyzing trace with hash -583554037, now seen corresponding path program 1 times [2022-07-13 19:09:49,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:49,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605963598] [2022-07-13 19:09:49,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:49,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:49,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:49,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605963598] [2022-07-13 19:09:49,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605963598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:49,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:49,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:49,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989452855] [2022-07-13 19:09:49,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:49,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:49,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:49,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:49,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:49,934 INFO L87 Difference]: Start difference. First operand 638 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:51,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:51,119 INFO L93 Difference]: Finished difference Result 1195 states and 1608 transitions. [2022-07-13 19:09:51,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:51,120 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:09:51,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:51,123 INFO L225 Difference]: With dead ends: 1195 [2022-07-13 19:09:51,123 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:09:51,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:51,124 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 3837 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3837 SdHoareTripleChecker+Valid, 3223 SdHoareTripleChecker+Invalid, 2663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:51,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3837 Valid, 3223 Invalid, 2663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:09:51,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:09:51,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 638. [2022-07-13 19:09:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3636363636363635) internal successors, (840), 637 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 840 transitions. [2022-07-13 19:09:51,178 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 840 transitions. Word has length 94 [2022-07-13 19:09:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:51,178 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 840 transitions. [2022-07-13 19:09:51,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:51,179 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 840 transitions. [2022-07-13 19:09:51,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:09:51,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:51,180 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] [2022-07-13 19:09:51,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 19:09:51,180 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:51,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:51,180 INFO L85 PathProgramCache]: Analyzing trace with hash -912166993, now seen corresponding path program 1 times [2022-07-13 19:09:51,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:51,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610672083] [2022-07-13 19:09:51,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:51,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:51,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:51,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610672083] [2022-07-13 19:09:51,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610672083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:51,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:51,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:51,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730046245] [2022-07-13 19:09:51,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:51,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:51,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:51,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:51,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:51,270 INFO L87 Difference]: Start difference. First operand 638 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:52,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:52,180 INFO L93 Difference]: Finished difference Result 1285 states and 1730 transitions. [2022-07-13 19:09:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:52,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:09:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:52,183 INFO L225 Difference]: With dead ends: 1285 [2022-07-13 19:09:52,184 INFO L226 Difference]: Without dead ends: 1132 [2022-07-13 19:09:52,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:52,185 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 2113 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2113 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:52,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2113 Valid, 3106 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:09:52,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-07-13 19:09:52,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 638. [2022-07-13 19:09:52,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3620129870129871) internal successors, (839), 637 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:52,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 839 transitions. [2022-07-13 19:09:52,242 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 839 transitions. Word has length 94 [2022-07-13 19:09:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:52,242 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 839 transitions. [2022-07-13 19:09:52,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:52,243 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 839 transitions. [2022-07-13 19:09:52,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:09:52,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:52,244 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] [2022-07-13 19:09:52,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 19:09:52,244 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:52,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:52,245 INFO L85 PathProgramCache]: Analyzing trace with hash 108575604, now seen corresponding path program 1 times [2022-07-13 19:09:52,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:52,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324106354] [2022-07-13 19:09:52,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:52,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:52,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:52,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:52,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324106354] [2022-07-13 19:09:52,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324106354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:52,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:52,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:52,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111337023] [2022-07-13 19:09:52,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:52,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:52,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:52,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:52,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:52,342 INFO L87 Difference]: Start difference. First operand 638 states and 839 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:53,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:53,447 INFO L93 Difference]: Finished difference Result 1195 states and 1605 transitions. [2022-07-13 19:09:53,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:53,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:09:53,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:53,451 INFO L225 Difference]: With dead ends: 1195 [2022-07-13 19:09:53,451 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:09:53,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:53,452 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 3827 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:53,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3827 Valid, 3225 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:09:53,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:09:53,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 638. [2022-07-13 19:09:53,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3603896103896105) internal successors, (838), 637 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:53,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 838 transitions. [2022-07-13 19:09:53,542 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 838 transitions. Word has length 94 [2022-07-13 19:09:53,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:53,543 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 838 transitions. [2022-07-13 19:09:53,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 838 transitions. [2022-07-13 19:09:53,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:09:53,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:53,545 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] [2022-07-13 19:09:53,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-13 19:09:53,545 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:53,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:53,546 INFO L85 PathProgramCache]: Analyzing trace with hash -905490814, now seen corresponding path program 1 times [2022-07-13 19:09:53,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:53,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082024416] [2022-07-13 19:09:53,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:53,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:53,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:53,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082024416] [2022-07-13 19:09:53,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082024416] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:53,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:53,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:53,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126325213] [2022-07-13 19:09:53,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:53,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:53,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:53,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:53,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:53,635 INFO L87 Difference]: Start difference. First operand 638 states and 838 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:54,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:54,878 INFO L93 Difference]: Finished difference Result 1233 states and 1656 transitions. [2022-07-13 19:09:54,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:54,879 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:09:54,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:54,882 INFO L225 Difference]: With dead ends: 1233 [2022-07-13 19:09:54,882 INFO L226 Difference]: Without dead ends: 1125 [2022-07-13 19:09:54,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:54,884 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 2015 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 2487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:54,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2015 Valid, 3152 Invalid, 2487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:09:54,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-07-13 19:09:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2022-07-13 19:09:54,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3587662337662338) internal successors, (837), 637 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 837 transitions. [2022-07-13 19:09:54,948 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 837 transitions. Word has length 94 [2022-07-13 19:09:54,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:54,948 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 837 transitions. [2022-07-13 19:09:54,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:54,949 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 837 transitions. [2022-07-13 19:09:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:09:54,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:54,950 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] [2022-07-13 19:09:54,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 19:09:54,950 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:54,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1059388859, now seen corresponding path program 1 times [2022-07-13 19:09:54,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:54,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645157811] [2022-07-13 19:09:54,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:54,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:55,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:55,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645157811] [2022-07-13 19:09:55,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645157811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:55,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:55,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:09:55,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105493307] [2022-07-13 19:09:55,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:55,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:09:55,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:55,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:09:55,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:09:55,135 INFO L87 Difference]: Start difference. First operand 638 states and 837 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:57,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:57,057 INFO L93 Difference]: Finished difference Result 1651 states and 2269 transitions. [2022-07-13 19:09:57,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:09:57,057 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:09:57,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:57,061 INFO L225 Difference]: With dead ends: 1651 [2022-07-13 19:09:57,061 INFO L226 Difference]: Without dead ends: 1565 [2022-07-13 19:09:57,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:09:57,064 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 5914 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 3267 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5914 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 3886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 3267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:57,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5914 Valid, 3929 Invalid, 3886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 3267 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:09:57,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-07-13 19:09:57,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 642. [2022-07-13 19:09:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3564516129032258) internal successors, (841), 641 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 841 transitions. [2022-07-13 19:09:57,166 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 841 transitions. Word has length 94 [2022-07-13 19:09:57,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:57,167 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 841 transitions. [2022-07-13 19:09:57,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:57,167 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 841 transitions. [2022-07-13 19:09:57,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:09:57,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:57,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:09:57,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-13 19:09:57,169 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:57,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:57,169 INFO L85 PathProgramCache]: Analyzing trace with hash 389206872, now seen corresponding path program 1 times [2022-07-13 19:09:57,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:57,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411260913] [2022-07-13 19:09:57,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:57,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:57,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:57,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411260913] [2022-07-13 19:09:57,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411260913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:57,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:57,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:09:57,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110417553] [2022-07-13 19:09:57,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:57,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:09:57,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:57,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:09:57,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:09:57,271 INFO L87 Difference]: Start difference. First operand 642 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:58,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:09:58,559 INFO L93 Difference]: Finished difference Result 1191 states and 1599 transitions. [2022-07-13 19:09:58,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:09:58,560 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:09:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:09:58,563 INFO L225 Difference]: With dead ends: 1191 [2022-07-13 19:09:58,563 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:09:58,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:09:58,568 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 3789 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2582 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3789 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:09:58,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3789 Valid, 3292 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2582 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:09:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:09:58,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 642. [2022-07-13 19:09:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3548387096774193) internal successors, (840), 641 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 840 transitions. [2022-07-13 19:09:58,647 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 840 transitions. Word has length 94 [2022-07-13 19:09:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:09:58,647 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 840 transitions. [2022-07-13 19:09:58,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:09:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 840 transitions. [2022-07-13 19:09:58,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:09:58,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:09:58,649 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] [2022-07-13 19:09:58,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 19:09:58,649 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:09:58,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:09:58,649 INFO L85 PathProgramCache]: Analyzing trace with hash -66481708, now seen corresponding path program 1 times [2022-07-13 19:09:58,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:09:58,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293250555] [2022-07-13 19:09:58,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:09:58,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:09:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:09:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:09:58,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:09:58,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293250555] [2022-07-13 19:09:58,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293250555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:09:58,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:09:58,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:09:58,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722135476] [2022-07-13 19:09:58,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:09:58,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:09:58,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:09:58,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:09:58,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:09:58,792 INFO L87 Difference]: Start difference. First operand 642 states and 840 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:01,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:01,071 INFO L93 Difference]: Finished difference Result 1651 states and 2267 transitions. [2022-07-13 19:10:01,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:01,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:10:01,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:01,075 INFO L225 Difference]: With dead ends: 1651 [2022-07-13 19:10:01,076 INFO L226 Difference]: Without dead ends: 1565 [2022-07-13 19:10:01,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:01,077 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 7191 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7191 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 3698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:01,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7191 Valid, 3584 Invalid, 3698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:10:01,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-07-13 19:10:01,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 646. [2022-07-13 19:10:01,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3525641025641026) internal successors, (844), 645 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:01,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 844 transitions. [2022-07-13 19:10:01,154 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 844 transitions. Word has length 94 [2022-07-13 19:10:01,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:01,155 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 844 transitions. [2022-07-13 19:10:01,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:01,155 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 844 transitions. [2022-07-13 19:10:01,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:10:01,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:01,156 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] [2022-07-13 19:10:01,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-13 19:10:01,156 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:01,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:01,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1010519460, now seen corresponding path program 1 times [2022-07-13 19:10:01,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:01,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508954826] [2022-07-13 19:10:01,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:01,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:01,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:01,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508954826] [2022-07-13 19:10:01,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508954826] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:01,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:01,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:01,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958179642] [2022-07-13 19:10:01,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:01,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:01,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:01,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:01,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:01,256 INFO L87 Difference]: Start difference. First operand 646 states and 844 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:02,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:02,510 INFO L93 Difference]: Finished difference Result 1191 states and 1597 transitions. [2022-07-13 19:10:02,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:02,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:10:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:02,532 INFO L225 Difference]: With dead ends: 1191 [2022-07-13 19:10:02,537 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:02,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:02,541 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 3702 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3702 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:02,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3702 Valid, 3478 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:02,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:02,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 646. [2022-07-13 19:10:02,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3509615384615385) internal successors, (843), 645 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 843 transitions. [2022-07-13 19:10:02,630 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 843 transitions. Word has length 94 [2022-07-13 19:10:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:02,630 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 843 transitions. [2022-07-13 19:10:02,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 843 transitions. [2022-07-13 19:10:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:10:02,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:02,632 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] [2022-07-13 19:10:02,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-13 19:10:02,632 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:02,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:02,632 INFO L85 PathProgramCache]: Analyzing trace with hash -4191139, now seen corresponding path program 1 times [2022-07-13 19:10:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:02,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876782649] [2022-07-13 19:10:02,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:02,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:02,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:02,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:02,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876782649] [2022-07-13 19:10:02,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876782649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:02,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:02,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:02,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862034414] [2022-07-13 19:10:02,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:02,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:02,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:02,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:02,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:02,787 INFO L87 Difference]: Start difference. First operand 646 states and 843 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:04,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:04,723 INFO L93 Difference]: Finished difference Result 1643 states and 2259 transitions. [2022-07-13 19:10:04,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:04,723 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:10:04,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:04,726 INFO L225 Difference]: With dead ends: 1643 [2022-07-13 19:10:04,726 INFO L226 Difference]: Without dead ends: 1561 [2022-07-13 19:10:04,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:04,727 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 6392 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2856 mSolverCounterSat, 727 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6392 SdHoareTripleChecker+Valid, 3400 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 727 IncrementalHoareTripleChecker+Valid, 2856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:04,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6392 Valid, 3400 Invalid, 3583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [727 Valid, 2856 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 19:10:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2022-07-13 19:10:04,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 650. [2022-07-13 19:10:04,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3487261146496816) internal successors, (847), 649 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:04,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 847 transitions. [2022-07-13 19:10:04,810 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 847 transitions. Word has length 94 [2022-07-13 19:10:04,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:04,811 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 847 transitions. [2022-07-13 19:10:04,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:04,811 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 847 transitions. [2022-07-13 19:10:04,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:10:04,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:04,812 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] [2022-07-13 19:10:04,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-13 19:10:04,812 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:04,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:04,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1834155361, now seen corresponding path program 1 times [2022-07-13 19:10:04,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:04,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278600937] [2022-07-13 19:10:04,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:04,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:04,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:04,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278600937] [2022-07-13 19:10:04,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278600937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:04,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:04,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:04,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536024229] [2022-07-13 19:10:04,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:04,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:04,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:04,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:04,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:04,956 INFO L87 Difference]: Start difference. First operand 650 states and 847 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:06,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:06,975 INFO L93 Difference]: Finished difference Result 1651 states and 2266 transitions. [2022-07-13 19:10:06,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:06,976 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:10:06,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:06,978 INFO L225 Difference]: With dead ends: 1651 [2022-07-13 19:10:06,978 INFO L226 Difference]: Without dead ends: 1565 [2022-07-13 19:10:06,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:06,980 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 7281 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 2584 mSolverCounterSat, 763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7281 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 763 IncrementalHoareTripleChecker+Valid, 2584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:06,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7281 Valid, 3162 Invalid, 3347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [763 Valid, 2584 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 19:10:06,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-07-13 19:10:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 654. [2022-07-13 19:10:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3465189873417722) internal successors, (851), 653 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:07,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 851 transitions. [2022-07-13 19:10:07,069 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 851 transitions. Word has length 94 [2022-07-13 19:10:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:07,070 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 851 transitions. [2022-07-13 19:10:07,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 851 transitions. [2022-07-13 19:10:07,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:10:07,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:07,071 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] [2022-07-13 19:10:07,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-13 19:10:07,072 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:07,072 INFO L85 PathProgramCache]: Analyzing trace with hash -472603347, now seen corresponding path program 1 times [2022-07-13 19:10:07,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:07,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967638707] [2022-07-13 19:10:07,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:07,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:07,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:07,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:07,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967638707] [2022-07-13 19:10:07,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967638707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:07,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:07,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:07,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196863491] [2022-07-13 19:10:07,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:07,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:07,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:07,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:07,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:07,160 INFO L87 Difference]: Start difference. First operand 654 states and 851 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:08,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:08,181 INFO L93 Difference]: Finished difference Result 1191 states and 1594 transitions. [2022-07-13 19:10:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:08,182 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:10:08,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:08,184 INFO L225 Difference]: With dead ends: 1191 [2022-07-13 19:10:08,184 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:08,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:08,185 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 3820 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 2483 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3820 SdHoareTripleChecker+Valid, 3203 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:08,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3820 Valid, 3203 Invalid, 2581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2483 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:10:08,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 654. [2022-07-13 19:10:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3449367088607596) internal successors, (850), 653 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 850 transitions. [2022-07-13 19:10:08,307 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 850 transitions. Word has length 94 [2022-07-13 19:10:08,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:08,308 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 850 transitions. [2022-07-13 19:10:08,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 850 transitions. [2022-07-13 19:10:08,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:10:08,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:08,310 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] [2022-07-13 19:10:08,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-13 19:10:08,310 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:08,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1387862169, now seen corresponding path program 1 times [2022-07-13 19:10:08,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:08,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859752449] [2022-07-13 19:10:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:08,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:08,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:08,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:08,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859752449] [2022-07-13 19:10:08,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859752449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:08,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:08,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:08,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254691867] [2022-07-13 19:10:08,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:08,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:08,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:08,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:08,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:08,403 INFO L87 Difference]: Start difference. First operand 654 states and 850 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:09,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:09,654 INFO L93 Difference]: Finished difference Result 1253 states and 1672 transitions. [2022-07-13 19:10:09,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:09,655 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:10:09,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:09,657 INFO L225 Difference]: With dead ends: 1253 [2022-07-13 19:10:09,657 INFO L226 Difference]: Without dead ends: 1145 [2022-07-13 19:10:09,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:09,658 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 2103 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:09,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 3097 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2022-07-13 19:10:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 654. [2022-07-13 19:10:09,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3433544303797469) internal successors, (849), 653 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:09,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 849 transitions. [2022-07-13 19:10:09,766 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 849 transitions. Word has length 94 [2022-07-13 19:10:09,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:09,766 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 849 transitions. [2022-07-13 19:10:09,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:09,766 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 849 transitions. [2022-07-13 19:10:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-13 19:10:09,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:09,768 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] [2022-07-13 19:10:09,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-13 19:10:09,768 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:09,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1262668072, now seen corresponding path program 1 times [2022-07-13 19:10:09,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:09,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550268297] [2022-07-13 19:10:09,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:09,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:09,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:09,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:09,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550268297] [2022-07-13 19:10:09,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550268297] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:09,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:09,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:09,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474742855] [2022-07-13 19:10:09,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:09,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:09,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:09,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:09,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:09,885 INFO L87 Difference]: Start difference. First operand 654 states and 849 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:11,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:11,160 INFO L93 Difference]: Finished difference Result 1195 states and 1596 transitions. [2022-07-13 19:10:11,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:11,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-07-13 19:10:11,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:11,162 INFO L225 Difference]: With dead ends: 1195 [2022-07-13 19:10:11,162 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:11,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:11,164 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 3774 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 2537 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3774 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:11,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3774 Valid, 3303 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2537 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:11,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:11,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 654. [2022-07-13 19:10:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3417721518987342) internal successors, (848), 653 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 848 transitions. [2022-07-13 19:10:11,255 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 848 transitions. Word has length 94 [2022-07-13 19:10:11,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:11,255 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 848 transitions. [2022-07-13 19:10:11,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:11,255 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 848 transitions. [2022-07-13 19:10:11,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-13 19:10:11,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:11,256 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] [2022-07-13 19:10:11,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-13 19:10:11,257 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:11,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:11,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1316548243, now seen corresponding path program 1 times [2022-07-13 19:10:11,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:11,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894909045] [2022-07-13 19:10:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:11,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:11,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:11,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894909045] [2022-07-13 19:10:11,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894909045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:11,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:11,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:11,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668795412] [2022-07-13 19:10:11,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:11,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:11,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:11,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:11,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:11,330 INFO L87 Difference]: Start difference. First operand 654 states and 848 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:12,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:12,573 INFO L93 Difference]: Finished difference Result 1195 states and 1594 transitions. [2022-07-13 19:10:12,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:12,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-13 19:10:12,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:12,576 INFO L225 Difference]: With dead ends: 1195 [2022-07-13 19:10:12,576 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:12,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:12,577 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 4049 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4049 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:12,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4049 Valid, 2869 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:12,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 650. [2022-07-13 19:10:12,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3423566878980893) internal successors, (843), 649 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 843 transitions. [2022-07-13 19:10:12,687 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 843 transitions. Word has length 95 [2022-07-13 19:10:12,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:12,687 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 843 transitions. [2022-07-13 19:10:12,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:12,688 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 843 transitions. [2022-07-13 19:10:12,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-13 19:10:12,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:12,689 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] [2022-07-13 19:10:12,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-13 19:10:12,689 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:12,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:12,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2144015537, now seen corresponding path program 1 times [2022-07-13 19:10:12,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:12,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200224930] [2022-07-13 19:10:12,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:12,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:12,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:12,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:12,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200224930] [2022-07-13 19:10:12,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200224930] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:12,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:12,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:12,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481495585] [2022-07-13 19:10:12,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:12,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:12,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:12,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:12,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:12,765 INFO L87 Difference]: Start difference. First operand 650 states and 843 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:14,009 INFO L93 Difference]: Finished difference Result 1195 states and 1593 transitions. [2022-07-13 19:10:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:14,009 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-13 19:10:14,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:14,011 INFO L225 Difference]: With dead ends: 1195 [2022-07-13 19:10:14,011 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:14,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:14,012 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 3021 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3021 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 2361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:14,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3021 Valid, 2905 Invalid, 2361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:14,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:14,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 646. [2022-07-13 19:10:14,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3429487179487178) internal successors, (838), 645 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 838 transitions. [2022-07-13 19:10:14,128 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 838 transitions. Word has length 95 [2022-07-13 19:10:14,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:14,129 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 838 transitions. [2022-07-13 19:10:14,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:14,129 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 838 transitions. [2022-07-13 19:10:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-13 19:10:14,130 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:14,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:14,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-13 19:10:14,130 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:14,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:14,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1517880925, now seen corresponding path program 1 times [2022-07-13 19:10:14,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:14,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490196790] [2022-07-13 19:10:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:14,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:14,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:14,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490196790] [2022-07-13 19:10:14,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490196790] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:14,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:14,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545488825] [2022-07-13 19:10:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:14,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:14,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:14,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:14,203 INFO L87 Difference]: Start difference. First operand 646 states and 838 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:15,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:15,434 INFO L93 Difference]: Finished difference Result 1191 states and 1589 transitions. [2022-07-13 19:10:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:15,435 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-13 19:10:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:15,437 INFO L225 Difference]: With dead ends: 1191 [2022-07-13 19:10:15,437 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:15,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:15,438 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 3019 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 2294 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3019 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:15,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3019 Valid, 2919 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2294 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:15,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 642. [2022-07-13 19:10:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3435483870967742) internal successors, (833), 641 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:15,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 833 transitions. [2022-07-13 19:10:15,536 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 833 transitions. Word has length 95 [2022-07-13 19:10:15,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:15,537 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 833 transitions. [2022-07-13 19:10:15,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:15,537 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 833 transitions. [2022-07-13 19:10:15,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-13 19:10:15,538 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:15,538 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] [2022-07-13 19:10:15,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-13 19:10:15,538 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:15,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:15,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1778839813, now seen corresponding path program 1 times [2022-07-13 19:10:15,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:15,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214004328] [2022-07-13 19:10:15,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:15,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:15,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:15,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214004328] [2022-07-13 19:10:15,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214004328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:15,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:15,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:15,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008807244] [2022-07-13 19:10:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:15,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:15,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:15,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:15,666 INFO L87 Difference]: Start difference. First operand 642 states and 833 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:17,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:17,092 INFO L93 Difference]: Finished difference Result 1190 states and 1587 transitions. [2022-07-13 19:10:17,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:17,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-13 19:10:17,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:17,094 INFO L225 Difference]: With dead ends: 1190 [2022-07-13 19:10:17,095 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:17,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:17,096 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 3718 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3718 SdHoareTripleChecker+Valid, 3392 SdHoareTripleChecker+Invalid, 2689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:17,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3718 Valid, 3392 Invalid, 2689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2592 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:17,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 642. [2022-07-13 19:10:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3419354838709678) internal successors, (832), 641 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 832 transitions. [2022-07-13 19:10:17,195 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 832 transitions. Word has length 95 [2022-07-13 19:10:17,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:17,195 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 832 transitions. [2022-07-13 19:10:17,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 832 transitions. [2022-07-13 19:10:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-13 19:10:17,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:17,197 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] [2022-07-13 19:10:17,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-13 19:10:17,197 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:17,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:17,197 INFO L85 PathProgramCache]: Analyzing trace with hash -413193078, now seen corresponding path program 1 times [2022-07-13 19:10:17,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:17,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602391625] [2022-07-13 19:10:17,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:17,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:17,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:17,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602391625] [2022-07-13 19:10:17,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602391625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:17,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:17,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:17,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974878154] [2022-07-13 19:10:17,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:17,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:17,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:17,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:17,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:17,273 INFO L87 Difference]: Start difference. First operand 642 states and 832 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:18,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:18,477 INFO L93 Difference]: Finished difference Result 1195 states and 1591 transitions. [2022-07-13 19:10:18,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:18,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-07-13 19:10:18,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:18,479 INFO L225 Difference]: With dead ends: 1195 [2022-07-13 19:10:18,479 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:18,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:18,480 INFO L413 NwaCegarLoop]: 728 mSDtfsCounter, 3902 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3902 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:18,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3902 Valid, 2957 Invalid, 2427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:10:18,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:18,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 638. [2022-07-13 19:10:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3425324675324675) internal successors, (827), 637 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:18,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 827 transitions. [2022-07-13 19:10:18,578 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 827 transitions. Word has length 95 [2022-07-13 19:10:18,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:18,579 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 827 transitions. [2022-07-13 19:10:18,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:18,579 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 827 transitions. [2022-07-13 19:10:18,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:18,580 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:18,580 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] [2022-07-13 19:10:18,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-13 19:10:18,580 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:18,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:18,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1915466444, now seen corresponding path program 1 times [2022-07-13 19:10:18,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:18,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388457875] [2022-07-13 19:10:18,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:18,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:18,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:18,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:18,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388457875] [2022-07-13 19:10:18,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388457875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:18,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:18,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:18,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136416677] [2022-07-13 19:10:18,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:18,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:18,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:18,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:18,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:18,672 INFO L87 Difference]: Start difference. First operand 638 states and 827 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:19,930 INFO L93 Difference]: Finished difference Result 1200 states and 1594 transitions. [2022-07-13 19:10:19,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:19,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:19,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:19,932 INFO L225 Difference]: With dead ends: 1200 [2022-07-13 19:10:19,932 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:10:19,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:19,941 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 4072 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4072 SdHoareTripleChecker+Valid, 3277 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:19,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4072 Valid, 3277 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:19,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:10:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 638. [2022-07-13 19:10:20,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3409090909090908) internal successors, (826), 637 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 826 transitions. [2022-07-13 19:10:20,084 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 826 transitions. Word has length 96 [2022-07-13 19:10:20,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:20,085 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 826 transitions. [2022-07-13 19:10:20,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:20,085 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 826 transitions. [2022-07-13 19:10:20,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:20,086 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:20,086 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] [2022-07-13 19:10:20,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-13 19:10:20,087 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:20,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:20,087 INFO L85 PathProgramCache]: Analyzing trace with hash 747746075, now seen corresponding path program 1 times [2022-07-13 19:10:20,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:20,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037145656] [2022-07-13 19:10:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:20,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:20,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:20,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037145656] [2022-07-13 19:10:20,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037145656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:20,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:20,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:20,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939875547] [2022-07-13 19:10:20,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:20,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:20,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:20,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:20,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:20,185 INFO L87 Difference]: Start difference. First operand 638 states and 826 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:21,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:21,470 INFO L93 Difference]: Finished difference Result 1156 states and 1527 transitions. [2022-07-13 19:10:21,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:21,471 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:21,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:21,472 INFO L225 Difference]: With dead ends: 1156 [2022-07-13 19:10:21,473 INFO L226 Difference]: Without dead ends: 1077 [2022-07-13 19:10:21,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:21,473 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 3714 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 2411 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3714 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:21,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3714 Valid, 3046 Invalid, 2591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2411 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:21,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-07-13 19:10:21,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 638. [2022-07-13 19:10:21,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3392857142857142) internal successors, (825), 637 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:21,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 825 transitions. [2022-07-13 19:10:21,576 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 825 transitions. Word has length 96 [2022-07-13 19:10:21,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:21,576 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 825 transitions. [2022-07-13 19:10:21,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:21,576 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 825 transitions. [2022-07-13 19:10:21,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:21,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:21,578 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] [2022-07-13 19:10:21,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-13 19:10:21,578 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:21,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:21,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1896440013, now seen corresponding path program 1 times [2022-07-13 19:10:21,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:21,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269960397] [2022-07-13 19:10:21,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:21,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:21,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:21,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269960397] [2022-07-13 19:10:21,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269960397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:21,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:21,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:21,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004099071] [2022-07-13 19:10:21,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:21,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:21,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:21,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:21,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:21,653 INFO L87 Difference]: Start difference. First operand 638 states and 825 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:22,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:22,852 INFO L93 Difference]: Finished difference Result 1239 states and 1643 transitions. [2022-07-13 19:10:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:22,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:22,855 INFO L225 Difference]: With dead ends: 1239 [2022-07-13 19:10:22,855 INFO L226 Difference]: Without dead ends: 1125 [2022-07-13 19:10:22,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:22,856 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 2909 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:22,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 3120 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:10:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2022-07-13 19:10:22,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 638. [2022-07-13 19:10:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 616 states have (on average 1.3376623376623376) internal successors, (824), 637 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:22,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 824 transitions. [2022-07-13 19:10:22,960 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 824 transitions. Word has length 96 [2022-07-13 19:10:22,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:22,960 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 824 transitions. [2022-07-13 19:10:22,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:22,960 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 824 transitions. [2022-07-13 19:10:22,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:22,961 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:22,961 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] [2022-07-13 19:10:22,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-13 19:10:22,962 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:22,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1185015970, now seen corresponding path program 1 times [2022-07-13 19:10:22,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:22,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218419354] [2022-07-13 19:10:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:22,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:23,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:23,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:23,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218419354] [2022-07-13 19:10:23,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218419354] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:23,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:23,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:23,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103310713] [2022-07-13 19:10:23,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:23,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:23,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:23,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:23,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:23,135 INFO L87 Difference]: Start difference. First operand 638 states and 824 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:25,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:25,038 INFO L93 Difference]: Finished difference Result 1661 states and 2262 transitions. [2022-07-13 19:10:25,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:25,039 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:25,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:25,051 INFO L225 Difference]: With dead ends: 1661 [2022-07-13 19:10:25,051 INFO L226 Difference]: Without dead ends: 1570 [2022-07-13 19:10:25,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:25,052 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 7688 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 2929 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7688 SdHoareTripleChecker+Valid, 3741 SdHoareTripleChecker+Invalid, 3636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 2929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:25,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7688 Valid, 3741 Invalid, 3636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 2929 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2022-07-13 19:10:25,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 642. [2022-07-13 19:10:25,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.335483870967742) internal successors, (828), 641 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:25,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 828 transitions. [2022-07-13 19:10:25,165 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 828 transitions. Word has length 96 [2022-07-13 19:10:25,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:25,166 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 828 transitions. [2022-07-13 19:10:25,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:25,166 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 828 transitions. [2022-07-13 19:10:25,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:25,167 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:25,167 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] [2022-07-13 19:10:25,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-13 19:10:25,167 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:25,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:25,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1478196549, now seen corresponding path program 1 times [2022-07-13 19:10:25,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:25,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613972620] [2022-07-13 19:10:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:25,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:25,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:25,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:25,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613972620] [2022-07-13 19:10:25,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613972620] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:25,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:25,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:25,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209386387] [2022-07-13 19:10:25,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:25,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:25,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:25,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:25,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:25,266 INFO L87 Difference]: Start difference. First operand 642 states and 828 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:26,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:26,649 INFO L93 Difference]: Finished difference Result 1160 states and 1529 transitions. [2022-07-13 19:10:26,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:26,650 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:26,652 INFO L225 Difference]: With dead ends: 1160 [2022-07-13 19:10:26,652 INFO L226 Difference]: Without dead ends: 1081 [2022-07-13 19:10:26,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:26,652 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 3612 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3612 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 2757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:26,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3612 Valid, 3248 Invalid, 2757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:26,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-07-13 19:10:26,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 642. [2022-07-13 19:10:26,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 620 states have (on average 1.3338709677419356) internal successors, (827), 641 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 827 transitions. [2022-07-13 19:10:26,764 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 827 transitions. Word has length 96 [2022-07-13 19:10:26,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:26,765 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 827 transitions. [2022-07-13 19:10:26,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:26,765 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 827 transitions. [2022-07-13 19:10:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:26,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:26,766 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] [2022-07-13 19:10:26,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-13 19:10:26,767 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:26,768 INFO L85 PathProgramCache]: Analyzing trace with hash 190488080, now seen corresponding path program 1 times [2022-07-13 19:10:26,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:26,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983754903] [2022-07-13 19:10:26,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:26,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:26,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:26,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:26,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983754903] [2022-07-13 19:10:26,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983754903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:26,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:26,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:26,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158646621] [2022-07-13 19:10:26,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:26,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:26,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:26,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:26,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:26,902 INFO L87 Difference]: Start difference. First operand 642 states and 827 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:29,144 INFO L93 Difference]: Finished difference Result 1529 states and 2065 transitions. [2022-07-13 19:10:29,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:29,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:29,146 INFO L225 Difference]: With dead ends: 1529 [2022-07-13 19:10:29,146 INFO L226 Difference]: Without dead ends: 1450 [2022-07-13 19:10:29,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:29,147 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 6908 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6908 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:29,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6908 Valid, 2845 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [929 Valid, 2356 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 19:10:29,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2022-07-13 19:10:29,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 646. [2022-07-13 19:10:29,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.3317307692307692) internal successors, (831), 645 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:29,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 831 transitions. [2022-07-13 19:10:29,281 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 831 transitions. Word has length 96 [2022-07-13 19:10:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:29,282 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 831 transitions. [2022-07-13 19:10:29,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 831 transitions. [2022-07-13 19:10:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:29,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:29,283 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] [2022-07-13 19:10:29,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-13 19:10:29,284 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:29,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:29,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1908305338, now seen corresponding path program 1 times [2022-07-13 19:10:29,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:29,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690986990] [2022-07-13 19:10:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:29,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:29,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:29,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:29,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690986990] [2022-07-13 19:10:29,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690986990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:29,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:29,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:29,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883693202] [2022-07-13 19:10:29,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:29,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:29,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:29,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:29,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:29,415 INFO L87 Difference]: Start difference. First operand 646 states and 831 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:30,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:30,873 INFO L93 Difference]: Finished difference Result 1157 states and 1524 transitions. [2022-07-13 19:10:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:30,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:30,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:30,889 INFO L225 Difference]: With dead ends: 1157 [2022-07-13 19:10:30,903 INFO L226 Difference]: Without dead ends: 1081 [2022-07-13 19:10:30,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:30,904 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 3703 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2393 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:30,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3703 Valid, 3030 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2393 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:30,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-07-13 19:10:31,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 646. [2022-07-13 19:10:31,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 624 states have (on average 1.330128205128205) internal successors, (830), 645 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:31,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 830 transitions. [2022-07-13 19:10:31,056 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 830 transitions. Word has length 96 [2022-07-13 19:10:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:31,057 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 830 transitions. [2022-07-13 19:10:31,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 830 transitions. [2022-07-13 19:10:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:31,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:31,061 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] [2022-07-13 19:10:31,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-13 19:10:31,062 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:31,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:31,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1460404217, now seen corresponding path program 1 times [2022-07-13 19:10:31,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:31,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754800266] [2022-07-13 19:10:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:31,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:31,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:31,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754800266] [2022-07-13 19:10:31,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754800266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:31,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:31,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:31,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4777118] [2022-07-13 19:10:31,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:31,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:31,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:31,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:31,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:31,193 INFO L87 Difference]: Start difference. First operand 646 states and 830 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:33,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:33,118 INFO L93 Difference]: Finished difference Result 1591 states and 2150 transitions. [2022-07-13 19:10:33,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:33,118 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:33,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:33,120 INFO L225 Difference]: With dead ends: 1591 [2022-07-13 19:10:33,120 INFO L226 Difference]: Without dead ends: 1574 [2022-07-13 19:10:33,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:33,121 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 5729 mSDsluCounter, 2612 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5729 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:33,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5729 Valid, 3388 Invalid, 3269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:33,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-07-13 19:10:33,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 650. [2022-07-13 19:10:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3280254777070064) internal successors, (834), 649 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:33,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 834 transitions. [2022-07-13 19:10:33,268 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 834 transitions. Word has length 96 [2022-07-13 19:10:33,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:33,268 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 834 transitions. [2022-07-13 19:10:33,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:33,268 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 834 transitions. [2022-07-13 19:10:33,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:33,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:33,269 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] [2022-07-13 19:10:33,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-13 19:10:33,270 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:33,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:33,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1202808302, now seen corresponding path program 1 times [2022-07-13 19:10:33,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:33,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886737706] [2022-07-13 19:10:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:33,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:33,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:33,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:33,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886737706] [2022-07-13 19:10:33,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886737706] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:33,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:33,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:33,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101419991] [2022-07-13 19:10:33,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:33,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:33,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:33,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:33,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:33,365 INFO L87 Difference]: Start difference. First operand 650 states and 834 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:34,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:34,528 INFO L93 Difference]: Finished difference Result 1090 states and 1419 transitions. [2022-07-13 19:10:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:34,528 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:34,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:34,536 INFO L225 Difference]: With dead ends: 1090 [2022-07-13 19:10:34,536 INFO L226 Difference]: Without dead ends: 1085 [2022-07-13 19:10:34,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:34,537 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 3701 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3701 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:34,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3701 Valid, 3031 Invalid, 2565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:10:34,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-13 19:10:34,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 650. [2022-07-13 19:10:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 628 states have (on average 1.3264331210191083) internal successors, (833), 649 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 833 transitions. [2022-07-13 19:10:34,691 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 833 transitions. Word has length 96 [2022-07-13 19:10:34,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:34,691 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 833 transitions. [2022-07-13 19:10:34,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:34,691 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 833 transitions. [2022-07-13 19:10:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:34,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:34,692 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] [2022-07-13 19:10:34,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-13 19:10:34,693 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash -263649479, now seen corresponding path program 1 times [2022-07-13 19:10:34,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:34,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884198485] [2022-07-13 19:10:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:34,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:34,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:34,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:34,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884198485] [2022-07-13 19:10:34,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884198485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:34,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:34,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:34,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000881731] [2022-07-13 19:10:34,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:34,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:34,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:34,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:34,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:34,814 INFO L87 Difference]: Start difference. First operand 650 states and 833 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:36,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:36,784 INFO L93 Difference]: Finished difference Result 1459 states and 1954 transitions. [2022-07-13 19:10:36,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:36,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:36,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:36,786 INFO L225 Difference]: With dead ends: 1459 [2022-07-13 19:10:36,786 INFO L226 Difference]: Without dead ends: 1454 [2022-07-13 19:10:36,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:36,788 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 6910 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 2339 mSolverCounterSat, 934 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6910 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 2339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:36,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6910 Valid, 2832 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [934 Valid, 2339 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:36,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-07-13 19:10:36,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 654. [2022-07-13 19:10:36,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3243670886075949) internal successors, (837), 653 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 837 transitions. [2022-07-13 19:10:36,984 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 837 transitions. Word has length 96 [2022-07-13 19:10:36,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:36,984 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 837 transitions. [2022-07-13 19:10:36,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 837 transitions. [2022-07-13 19:10:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:36,986 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:36,986 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] [2022-07-13 19:10:36,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-13 19:10:36,987 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:36,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:36,987 INFO L85 PathProgramCache]: Analyzing trace with hash -375617371, now seen corresponding path program 1 times [2022-07-13 19:10:36,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:36,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065261017] [2022-07-13 19:10:36,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:36,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:37,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:37,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065261017] [2022-07-13 19:10:37,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065261017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:37,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:37,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:37,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230087260] [2022-07-13 19:10:37,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:37,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:37,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:37,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:37,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:37,095 INFO L87 Difference]: Start difference. First operand 654 states and 837 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:38,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:38,557 INFO L93 Difference]: Finished difference Result 1161 states and 1525 transitions. [2022-07-13 19:10:38,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:38,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:38,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:38,559 INFO L225 Difference]: With dead ends: 1161 [2022-07-13 19:10:38,560 INFO L226 Difference]: Without dead ends: 1085 [2022-07-13 19:10:38,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:38,563 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 3699 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3699 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:38,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3699 Valid, 3022 Invalid, 2550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:38,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-13 19:10:38,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 654. [2022-07-13 19:10:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 632 states have (on average 1.3227848101265822) internal successors, (836), 653 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:38,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 836 transitions. [2022-07-13 19:10:38,745 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 836 transitions. Word has length 96 [2022-07-13 19:10:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:38,745 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 836 transitions. [2022-07-13 19:10:38,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:38,746 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 836 transitions. [2022-07-13 19:10:38,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:38,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:38,747 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] [2022-07-13 19:10:38,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-13 19:10:38,748 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:38,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:38,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1360186144, now seen corresponding path program 1 times [2022-07-13 19:10:38,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:38,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853974523] [2022-07-13 19:10:38,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:38,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:38,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:38,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853974523] [2022-07-13 19:10:38,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853974523] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:38,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:38,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:38,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283648447] [2022-07-13 19:10:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:38,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:38,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:38,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:38,960 INFO L87 Difference]: Start difference. First operand 654 states and 836 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:41,135 INFO L93 Difference]: Finished difference Result 1459 states and 1952 transitions. [2022-07-13 19:10:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:41,135 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:41,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:41,137 INFO L225 Difference]: With dead ends: 1459 [2022-07-13 19:10:41,137 INFO L226 Difference]: Without dead ends: 1454 [2022-07-13 19:10:41,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:41,138 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 6919 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 2326 mSolverCounterSat, 939 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6919 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 939 IncrementalHoareTripleChecker+Valid, 2326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:41,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6919 Valid, 2823 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [939 Valid, 2326 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-13 19:10:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-07-13 19:10:41,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 658. [2022-07-13 19:10:41,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 636 states have (on average 1.320754716981132) internal successors, (840), 657 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:41,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 840 transitions. [2022-07-13 19:10:41,287 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 840 transitions. Word has length 96 [2022-07-13 19:10:41,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:41,287 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 840 transitions. [2022-07-13 19:10:41,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:41,287 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 840 transitions. [2022-07-13 19:10:41,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:41,288 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:41,288 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] [2022-07-13 19:10:41,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-13 19:10:41,289 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:41,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:41,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1470891933, now seen corresponding path program 1 times [2022-07-13 19:10:41,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:41,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145856635] [2022-07-13 19:10:41,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:41,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:41,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:41,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:41,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145856635] [2022-07-13 19:10:41,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145856635] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:41,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:41,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:41,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292149931] [2022-07-13 19:10:41,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:41,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:41,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:41,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:41,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:41,396 INFO L87 Difference]: Start difference. First operand 658 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:42,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:42,704 INFO L93 Difference]: Finished difference Result 1161 states and 1523 transitions. [2022-07-13 19:10:42,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:42,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:42,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:42,706 INFO L225 Difference]: With dead ends: 1161 [2022-07-13 19:10:42,706 INFO L226 Difference]: Without dead ends: 1085 [2022-07-13 19:10:42,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:42,707 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 3602 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 2530 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3602 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:42,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3602 Valid, 3228 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2530 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:10:42,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-13 19:10:42,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 658. [2022-07-13 19:10:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 636 states have (on average 1.319182389937107) internal successors, (839), 657 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 839 transitions. [2022-07-13 19:10:42,854 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 839 transitions. Word has length 96 [2022-07-13 19:10:42,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:42,855 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 839 transitions. [2022-07-13 19:10:42,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:42,855 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 839 transitions. [2022-07-13 19:10:42,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:42,856 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:42,856 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] [2022-07-13 19:10:42,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-13 19:10:42,856 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:42,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:42,857 INFO L85 PathProgramCache]: Analyzing trace with hash 285754867, now seen corresponding path program 1 times [2022-07-13 19:10:42,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:42,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585869793] [2022-07-13 19:10:42,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:42,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:42,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:42,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585869793] [2022-07-13 19:10:42,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585869793] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:42,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:42,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:42,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141861131] [2022-07-13 19:10:42,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:42,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:42,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:42,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:42,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:42,991 INFO L87 Difference]: Start difference. First operand 658 states and 839 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:45,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:45,127 INFO L93 Difference]: Finished difference Result 1527 states and 2056 transitions. [2022-07-13 19:10:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:45,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:45,129 INFO L225 Difference]: With dead ends: 1527 [2022-07-13 19:10:45,129 INFO L226 Difference]: Without dead ends: 1451 [2022-07-13 19:10:45,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:45,130 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 6916 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6916 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 3257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:45,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6916 Valid, 2814 Invalid, 3257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:45,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-07-13 19:10:45,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 662. [2022-07-13 19:10:45,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 640 states have (on average 1.3171875) internal successors, (843), 661 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 843 transitions. [2022-07-13 19:10:45,326 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 843 transitions. Word has length 96 [2022-07-13 19:10:45,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:45,326 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 843 transitions. [2022-07-13 19:10:45,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:45,326 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 843 transitions. [2022-07-13 19:10:45,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:45,327 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:45,327 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] [2022-07-13 19:10:45,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-13 19:10:45,328 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:45,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:45,328 INFO L85 PathProgramCache]: Analyzing trace with hash -236226230, now seen corresponding path program 1 times [2022-07-13 19:10:45,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:45,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957686633] [2022-07-13 19:10:45,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:45,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:45,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:45,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:45,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957686633] [2022-07-13 19:10:45,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957686633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:45,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:45,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:45,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153507680] [2022-07-13 19:10:45,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:45,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:45,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:45,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:45,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:45,435 INFO L87 Difference]: Start difference. First operand 662 states and 843 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:46,913 INFO L93 Difference]: Finished difference Result 1161 states and 1521 transitions. [2022-07-13 19:10:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:46,914 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:46,915 INFO L225 Difference]: With dead ends: 1161 [2022-07-13 19:10:46,915 INFO L226 Difference]: Without dead ends: 1085 [2022-07-13 19:10:46,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:46,916 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 3600 mSDsluCounter, 2581 mSDsCounter, 0 mSdLazyCounter, 2515 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3600 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:46,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3600 Valid, 3224 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2515 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:10:46,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-13 19:10:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 662. [2022-07-13 19:10:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 640 states have (on average 1.315625) internal successors, (842), 661 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:47,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 842 transitions. [2022-07-13 19:10:47,082 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 842 transitions. Word has length 96 [2022-07-13 19:10:47,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:47,082 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 842 transitions. [2022-07-13 19:10:47,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:47,082 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 842 transitions. [2022-07-13 19:10:47,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:47,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:47,083 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] [2022-07-13 19:10:47,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-13 19:10:47,084 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:47,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:47,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1906062599, now seen corresponding path program 1 times [2022-07-13 19:10:47,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:47,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89237829] [2022-07-13 19:10:47,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:47,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:47,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:47,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:47,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89237829] [2022-07-13 19:10:47,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89237829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:47,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:47,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:47,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698298295] [2022-07-13 19:10:47,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:47,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:47,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:47,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:47,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:47,223 INFO L87 Difference]: Start difference. First operand 662 states and 842 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:49,750 INFO L93 Difference]: Finished difference Result 1459 states and 1948 transitions. [2022-07-13 19:10:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:49,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:49,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:49,752 INFO L225 Difference]: With dead ends: 1459 [2022-07-13 19:10:49,752 INFO L226 Difference]: Without dead ends: 1454 [2022-07-13 19:10:49,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:49,753 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 4996 mSDsluCounter, 2991 mSDsCounter, 0 mSdLazyCounter, 3100 mSolverCounterSat, 769 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4996 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 3869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 769 IncrementalHoareTripleChecker+Valid, 3100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:49,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4996 Valid, 3685 Invalid, 3869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [769 Valid, 3100 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:10:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-07-13 19:10:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 666. [2022-07-13 19:10:49,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 644 states have (on average 1.313664596273292) internal successors, (846), 665 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:49,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 846 transitions. [2022-07-13 19:10:49,927 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 846 transitions. Word has length 96 [2022-07-13 19:10:49,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:49,927 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 846 transitions. [2022-07-13 19:10:49,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:49,928 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 846 transitions. [2022-07-13 19:10:49,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:49,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:49,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:49,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-13 19:10:49,929 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:49,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:49,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1010630433, now seen corresponding path program 1 times [2022-07-13 19:10:49,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:49,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393529430] [2022-07-13 19:10:49,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:49,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:50,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:50,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393529430] [2022-07-13 19:10:50,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393529430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:50,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:50,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:50,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940088013] [2022-07-13 19:10:50,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:50,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:50,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:50,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:50,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:50,082 INFO L87 Difference]: Start difference. First operand 666 states and 846 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:52,412 INFO L93 Difference]: Finished difference Result 1527 states and 2053 transitions. [2022-07-13 19:10:52,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:52,413 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:52,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:52,414 INFO L225 Difference]: With dead ends: 1527 [2022-07-13 19:10:52,414 INFO L226 Difference]: Without dead ends: 1451 [2022-07-13 19:10:52,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:52,415 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 4998 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 3089 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 3862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 3089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:52,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4998 Valid, 3671 Invalid, 3862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 3089 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 19:10:52,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-07-13 19:10:52,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 670. [2022-07-13 19:10:52,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 648 states have (on average 1.3117283950617284) internal successors, (850), 669 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:52,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 850 transitions. [2022-07-13 19:10:52,578 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 850 transitions. Word has length 96 [2022-07-13 19:10:52,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:52,578 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 850 transitions. [2022-07-13 19:10:52,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:52,578 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 850 transitions. [2022-07-13 19:10:52,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:52,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:52,579 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] [2022-07-13 19:10:52,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-13 19:10:52,580 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:52,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:52,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1893367864, now seen corresponding path program 1 times [2022-07-13 19:10:52,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:52,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941794897] [2022-07-13 19:10:52,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:52,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:52,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:52,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941794897] [2022-07-13 19:10:52,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941794897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:52,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:52,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:52,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345508629] [2022-07-13 19:10:52,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:52,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:52,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:52,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:52,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:52,740 INFO L87 Difference]: Start difference. First operand 670 states and 850 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:55,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:55,207 INFO L93 Difference]: Finished difference Result 1527 states and 2052 transitions. [2022-07-13 19:10:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:55,208 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:55,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:55,209 INFO L225 Difference]: With dead ends: 1527 [2022-07-13 19:10:55,210 INFO L226 Difference]: Without dead ends: 1451 [2022-07-13 19:10:55,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:55,210 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 5965 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 924 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5965 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 3866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 924 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:55,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5965 Valid, 3449 Invalid, 3866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [924 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:10:55,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-07-13 19:10:55,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 674. [2022-07-13 19:10:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 652 states have (on average 1.3098159509202454) internal successors, (854), 673 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 854 transitions. [2022-07-13 19:10:55,375 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 854 transitions. Word has length 96 [2022-07-13 19:10:55,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:55,375 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 854 transitions. [2022-07-13 19:10:55,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 854 transitions. [2022-07-13 19:10:55,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:55,376 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:55,376 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] [2022-07-13 19:10:55,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-13 19:10:55,377 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:55,377 INFO L85 PathProgramCache]: Analyzing trace with hash 166686020, now seen corresponding path program 1 times [2022-07-13 19:10:55,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:55,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776631035] [2022-07-13 19:10:55,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:55,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:55,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:55,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776631035] [2022-07-13 19:10:55,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776631035] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:55,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:55,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:55,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673434388] [2022-07-13 19:10:55,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:55,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:55,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:55,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:55,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:55,510 INFO L87 Difference]: Start difference. First operand 674 states and 854 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:57,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:57,750 INFO L93 Difference]: Finished difference Result 1533 states and 2057 transitions. [2022-07-13 19:10:57,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:10:57,751 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:57,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:57,752 INFO L225 Difference]: With dead ends: 1533 [2022-07-13 19:10:57,752 INFO L226 Difference]: Without dead ends: 1454 [2022-07-13 19:10:57,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:10:57,754 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 6917 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6917 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 3235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:57,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6917 Valid, 2797 Invalid, 3235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-13 19:10:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-07-13 19:10:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 678. [2022-07-13 19:10:57,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 656 states have (on average 1.3079268292682926) internal successors, (858), 677 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:57,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 858 transitions. [2022-07-13 19:10:57,922 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 858 transitions. Word has length 96 [2022-07-13 19:10:57,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:57,922 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 858 transitions. [2022-07-13 19:10:57,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:57,923 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 858 transitions. [2022-07-13 19:10:57,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:57,924 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:57,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:57,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-13 19:10:57,924 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:57,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1834041875, now seen corresponding path program 1 times [2022-07-13 19:10:57,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:57,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929987824] [2022-07-13 19:10:57,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:57,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:58,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:58,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929987824] [2022-07-13 19:10:58,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929987824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:58,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:58,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:10:58,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506412496] [2022-07-13 19:10:58,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:58,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:10:58,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:58,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:10:58,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:10:58,033 INFO L87 Difference]: Start difference. First operand 678 states and 858 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:59,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:10:59,427 INFO L93 Difference]: Finished difference Result 1161 states and 1516 transitions. [2022-07-13 19:10:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:10:59,427 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:10:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:10:59,428 INFO L225 Difference]: With dead ends: 1161 [2022-07-13 19:10:59,429 INFO L226 Difference]: Without dead ends: 1085 [2022-07-13 19:10:59,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:10:59,429 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 3609 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:10:59,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 3184 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:10:59,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-13 19:10:59,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 678. [2022-07-13 19:10:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 656 states have (on average 1.3064024390243902) internal successors, (857), 677 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:59,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 857 transitions. [2022-07-13 19:10:59,597 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 857 transitions. Word has length 96 [2022-07-13 19:10:59,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:10:59,597 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 857 transitions. [2022-07-13 19:10:59,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:10:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 857 transitions. [2022-07-13 19:10:59,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:10:59,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:10:59,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:10:59,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-13 19:10:59,598 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:10:59,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:10:59,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1989068248, now seen corresponding path program 1 times [2022-07-13 19:10:59,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:10:59,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615339388] [2022-07-13 19:10:59,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:10:59,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:10:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:10:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:10:59,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:10:59,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615339388] [2022-07-13 19:10:59,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615339388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:10:59,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:10:59,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:10:59,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234718372] [2022-07-13 19:10:59,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:10:59,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:10:59,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:10:59,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:10:59,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:10:59,726 INFO L87 Difference]: Start difference. First operand 678 states and 857 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:02,301 INFO L93 Difference]: Finished difference Result 1527 states and 2049 transitions. [2022-07-13 19:11:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:11:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:11:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:02,303 INFO L225 Difference]: With dead ends: 1527 [2022-07-13 19:11:02,304 INFO L226 Difference]: Without dead ends: 1451 [2022-07-13 19:11:02,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:11:02,304 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 5034 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 3063 mSolverCounterSat, 784 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5034 SdHoareTripleChecker+Valid, 3619 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 784 IncrementalHoareTripleChecker+Valid, 3063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:02,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5034 Valid, 3619 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [784 Valid, 3063 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:11:02,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-07-13 19:11:02,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 682. [2022-07-13 19:11:02,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 660 states have (on average 1.3045454545454545) internal successors, (861), 681 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) [2022-07-13 19:11:02,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 861 transitions. [2022-07-13 19:11:02,551 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 861 transitions. Word has length 96 [2022-07-13 19:11:02,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:02,551 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 861 transitions. [2022-07-13 19:11:02,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:02,551 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 861 transitions. [2022-07-13 19:11:02,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:11:02,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:02,552 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] [2022-07-13 19:11:02,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-13 19:11:02,553 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:02,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:02,553 INFO L85 PathProgramCache]: Analyzing trace with hash -974368547, now seen corresponding path program 1 times [2022-07-13 19:11:02,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:02,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353202321] [2022-07-13 19:11:02,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:02,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:02,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:02,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:02,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353202321] [2022-07-13 19:11:02,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353202321] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:02,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:02,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:11:02,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984233801] [2022-07-13 19:11:02,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:02,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:02,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:02,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:02,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:02,716 INFO L87 Difference]: Start difference. First operand 682 states and 861 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:04,956 INFO L93 Difference]: Finished difference Result 1533 states and 2054 transitions. [2022-07-13 19:11:04,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:11:04,957 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:11:04,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:04,958 INFO L225 Difference]: With dead ends: 1533 [2022-07-13 19:11:04,959 INFO L226 Difference]: Without dead ends: 1454 [2022-07-13 19:11:04,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:11:04,959 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 5804 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 2251 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5804 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 2251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:04,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5804 Valid, 2782 Invalid, 3068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 2251 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:11:04,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-07-13 19:11:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 686. [2022-07-13 19:11:05,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 664 states have (on average 1.302710843373494) internal successors, (865), 685 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:05,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 865 transitions. [2022-07-13 19:11:05,157 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 865 transitions. Word has length 96 [2022-07-13 19:11:05,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:05,157 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 865 transitions. [2022-07-13 19:11:05,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:05,158 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 865 transitions. [2022-07-13 19:11:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:11:05,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:05,159 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] [2022-07-13 19:11:05,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-13 19:11:05,159 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:05,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:05,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1455369821, now seen corresponding path program 1 times [2022-07-13 19:11:05,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:05,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421852513] [2022-07-13 19:11:05,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:05,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:05,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:05,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:05,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421852513] [2022-07-13 19:11:05,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421852513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:05,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:05,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:05,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109378062] [2022-07-13 19:11:05,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:05,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:05,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:05,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:05,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:05,254 INFO L87 Difference]: Start difference. First operand 686 states and 865 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:06,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:06,526 INFO L93 Difference]: Finished difference Result 1161 states and 1513 transitions. [2022-07-13 19:11:06,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:06,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:11:06,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:06,528 INFO L225 Difference]: With dead ends: 1161 [2022-07-13 19:11:06,528 INFO L226 Difference]: Without dead ends: 1085 [2022-07-13 19:11:06,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:06,529 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 3709 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:06,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3709 Valid, 2946 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:11:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-13 19:11:06,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 686. [2022-07-13 19:11:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 664 states have (on average 1.3012048192771084) internal successors, (864), 685 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 864 transitions. [2022-07-13 19:11:06,716 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 864 transitions. Word has length 96 [2022-07-13 19:11:06,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:06,716 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 864 transitions. [2022-07-13 19:11:06,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:06,717 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 864 transitions. [2022-07-13 19:11:06,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:11:06,718 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:06,718 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] [2022-07-13 19:11:06,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-13 19:11:06,718 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:06,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:06,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1282250964, now seen corresponding path program 1 times [2022-07-13 19:11:06,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:06,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289098823] [2022-07-13 19:11:06,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:06,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:06,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:06,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289098823] [2022-07-13 19:11:06,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289098823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:06,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:06,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:06,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866816561] [2022-07-13 19:11:06,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:06,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:06,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:06,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:06,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:06,823 INFO L87 Difference]: Start difference. First operand 686 states and 864 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:08,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:08,005 INFO L93 Difference]: Finished difference Result 1164 states and 1515 transitions. [2022-07-13 19:11:08,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:08,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:11:08,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:08,007 INFO L225 Difference]: With dead ends: 1164 [2022-07-13 19:11:08,007 INFO L226 Difference]: Without dead ends: 1085 [2022-07-13 19:11:08,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:08,008 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 3708 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3708 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:08,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3708 Valid, 2946 Invalid, 2442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:11:08,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-13 19:11:08,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 686. [2022-07-13 19:11:08,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 664 states have (on average 1.2996987951807228) internal successors, (863), 685 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 863 transitions. [2022-07-13 19:11:08,188 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 863 transitions. Word has length 96 [2022-07-13 19:11:08,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:08,188 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 863 transitions. [2022-07-13 19:11:08,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:08,188 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 863 transitions. [2022-07-13 19:11:08,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-13 19:11:08,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:08,189 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] [2022-07-13 19:11:08,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-13 19:11:08,190 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1253817221, now seen corresponding path program 1 times [2022-07-13 19:11:08,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:08,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010395119] [2022-07-13 19:11:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:08,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:08,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:08,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:08,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010395119] [2022-07-13 19:11:08,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010395119] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:08,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:08,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:11:08,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038399884] [2022-07-13 19:11:08,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:08,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:08,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:08,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:08,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:08,313 INFO L87 Difference]: Start difference. First operand 686 states and 863 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:10,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:10,769 INFO L93 Difference]: Finished difference Result 1717 states and 2301 transitions. [2022-07-13 19:11:10,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:11:10,770 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-07-13 19:11:10,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:10,772 INFO L225 Difference]: With dead ends: 1717 [2022-07-13 19:11:10,772 INFO L226 Difference]: Without dead ends: 1626 [2022-07-13 19:11:10,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:11:10,772 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 5714 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5714 SdHoareTripleChecker+Valid, 3347 SdHoareTripleChecker+Invalid, 3191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:10,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5714 Valid, 3347 Invalid, 3191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 2592 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:11:10,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2022-07-13 19:11:10,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 690. [2022-07-13 19:11:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 668 states have (on average 1.2979041916167664) internal successors, (867), 689 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 867 transitions. [2022-07-13 19:11:10,961 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 867 transitions. Word has length 96 [2022-07-13 19:11:10,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:10,961 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 867 transitions. [2022-07-13 19:11:10,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 867 transitions. [2022-07-13 19:11:10,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:10,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:10,963 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] [2022-07-13 19:11:10,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-13 19:11:10,963 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:10,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:10,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1135046719, now seen corresponding path program 1 times [2022-07-13 19:11:10,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:10,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394972861] [2022-07-13 19:11:10,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:10,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:11,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:11,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:11,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394972861] [2022-07-13 19:11:11,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394972861] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:11,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:11,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:11,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885862678] [2022-07-13 19:11:11,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:11,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:11,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:11,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:11,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:11,032 INFO L87 Difference]: Start difference. First operand 690 states and 867 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:12,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:12,139 INFO L93 Difference]: Finished difference Result 1168 states and 1518 transitions. [2022-07-13 19:11:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:12,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:12,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:12,140 INFO L225 Difference]: With dead ends: 1168 [2022-07-13 19:11:12,141 INFO L226 Difference]: Without dead ends: 1089 [2022-07-13 19:11:12,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:12,141 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 2105 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:12,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2554 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 19:11:12,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2022-07-13 19:11:12,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 686. [2022-07-13 19:11:12,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 664 states have (on average 1.2981927710843373) internal successors, (862), 685 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 862 transitions. [2022-07-13 19:11:12,347 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 862 transitions. Word has length 97 [2022-07-13 19:11:12,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:12,347 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 862 transitions. [2022-07-13 19:11:12,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:12,347 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 862 transitions. [2022-07-13 19:11:12,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:12,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:12,349 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] [2022-07-13 19:11:12,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-13 19:11:12,349 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:12,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:12,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1945440602, now seen corresponding path program 1 times [2022-07-13 19:11:12,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:12,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345644288] [2022-07-13 19:11:12,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:12,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:12,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:12,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:12,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345644288] [2022-07-13 19:11:12,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345644288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:12,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:12,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:12,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845935923] [2022-07-13 19:11:12,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:12,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:12,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:12,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:12,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:12,418 INFO L87 Difference]: Start difference. First operand 686 states and 862 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:13,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:13,562 INFO L93 Difference]: Finished difference Result 1252 states and 1624 transitions. [2022-07-13 19:11:13,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:13,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:13,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:13,564 INFO L225 Difference]: With dead ends: 1252 [2022-07-13 19:11:13,564 INFO L226 Difference]: Without dead ends: 1161 [2022-07-13 19:11:13,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:13,565 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 2907 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 2311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:13,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2907 Valid, 2967 Invalid, 2311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:11:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2022-07-13 19:11:13,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 682. [2022-07-13 19:11:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 660 states have (on average 1.2984848484848486) internal successors, (857), 681 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 857 transitions. [2022-07-13 19:11:13,759 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 857 transitions. Word has length 97 [2022-07-13 19:11:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:13,760 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 857 transitions. [2022-07-13 19:11:13,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 857 transitions. [2022-07-13 19:11:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:13,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:13,762 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] [2022-07-13 19:11:13,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-13 19:11:13,763 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:13,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:13,763 INFO L85 PathProgramCache]: Analyzing trace with hash 751028406, now seen corresponding path program 1 times [2022-07-13 19:11:13,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:13,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316253963] [2022-07-13 19:11:13,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:13,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:13,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:13,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:13,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316253963] [2022-07-13 19:11:13,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316253963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:13,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:13,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:13,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544489700] [2022-07-13 19:11:13,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:13,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:13,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:13,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:13,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:13,852 INFO L87 Difference]: Start difference. First operand 682 states and 857 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:15,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:15,164 INFO L93 Difference]: Finished difference Result 1090 states and 1401 transitions. [2022-07-13 19:11:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:15,166 INFO L225 Difference]: With dead ends: 1090 [2022-07-13 19:11:15,166 INFO L226 Difference]: Without dead ends: 1085 [2022-07-13 19:11:15,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:15,166 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 2074 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:15,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 2620 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:11:15,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-13 19:11:15,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 678. [2022-07-13 19:11:15,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 656 states have (on average 1.298780487804878) internal successors, (852), 677 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:15,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 852 transitions. [2022-07-13 19:11:15,355 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 852 transitions. Word has length 97 [2022-07-13 19:11:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:15,355 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 852 transitions. [2022-07-13 19:11:15,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:15,356 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 852 transitions. [2022-07-13 19:11:15,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:15,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:15,357 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] [2022-07-13 19:11:15,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-13 19:11:15,357 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:15,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:15,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2144257693, now seen corresponding path program 1 times [2022-07-13 19:11:15,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:15,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604152805] [2022-07-13 19:11:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:15,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:15,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:15,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604152805] [2022-07-13 19:11:15,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604152805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:15,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:15,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:15,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951615635] [2022-07-13 19:11:15,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:15,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:15,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:15,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:15,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:15,452 INFO L87 Difference]: Start difference. First operand 678 states and 852 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:16,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:16,919 INFO L93 Difference]: Finished difference Result 1174 states and 1507 transitions. [2022-07-13 19:11:16,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:16,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:16,921 INFO L225 Difference]: With dead ends: 1174 [2022-07-13 19:11:16,921 INFO L226 Difference]: Without dead ends: 1157 [2022-07-13 19:11:16,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:16,922 INFO L413 NwaCegarLoop]: 746 mSDtfsCounter, 1967 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 2300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:16,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 3019 Invalid, 2300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2242 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:11:16,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2022-07-13 19:11:17,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 674. [2022-07-13 19:11:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 652 states have (on average 1.299079754601227) internal successors, (847), 673 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 847 transitions. [2022-07-13 19:11:17,111 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 847 transitions. Word has length 97 [2022-07-13 19:11:17,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:17,112 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 847 transitions. [2022-07-13 19:11:17,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 847 transitions. [2022-07-13 19:11:17,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:17,113 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:17,113 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] [2022-07-13 19:11:17,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-13 19:11:17,113 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:17,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:17,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1118128888, now seen corresponding path program 1 times [2022-07-13 19:11:17,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:17,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542741097] [2022-07-13 19:11:17,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:17,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:17,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:17,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542741097] [2022-07-13 19:11:17,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542741097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:17,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:17,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:17,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736366414] [2022-07-13 19:11:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:17,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:17,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:17,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:17,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:17,185 INFO L87 Difference]: Start difference. First operand 674 states and 847 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:18,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:18,625 INFO L93 Difference]: Finished difference Result 1086 states and 1395 transitions. [2022-07-13 19:11:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:18,626 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:18,627 INFO L225 Difference]: With dead ends: 1086 [2022-07-13 19:11:18,627 INFO L226 Difference]: Without dead ends: 1081 [2022-07-13 19:11:18,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:18,629 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 2956 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 2230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:18,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 2680 Invalid, 2230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:11:18,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-07-13 19:11:18,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 670. [2022-07-13 19:11:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 648 states have (on average 1.2993827160493827) internal successors, (842), 669 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:18,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 842 transitions. [2022-07-13 19:11:18,824 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 842 transitions. Word has length 97 [2022-07-13 19:11:18,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:18,824 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 842 transitions. [2022-07-13 19:11:18,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:18,824 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 842 transitions. [2022-07-13 19:11:18,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:18,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:18,825 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] [2022-07-13 19:11:18,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-13 19:11:18,825 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:18,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:18,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1222528787, now seen corresponding path program 1 times [2022-07-13 19:11:18,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:18,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990881632] [2022-07-13 19:11:18,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:18,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:18,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:18,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990881632] [2022-07-13 19:11:18,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990881632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:18,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:18,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:18,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021593030] [2022-07-13 19:11:18,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:18,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:18,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:18,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:18,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:18,927 INFO L87 Difference]: Start difference. First operand 670 states and 842 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:20,445 INFO L93 Difference]: Finished difference Result 1155 states and 1500 transitions. [2022-07-13 19:11:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:20,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:20,447 INFO L225 Difference]: With dead ends: 1155 [2022-07-13 19:11:20,447 INFO L226 Difference]: Without dead ends: 1080 [2022-07-13 19:11:20,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:20,448 INFO L413 NwaCegarLoop]: 608 mSDtfsCounter, 3624 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3624 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 2477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:20,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3624 Valid, 3087 Invalid, 2477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:11:20,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-07-13 19:11:20,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 669. [2022-07-13 19:11:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 647 states have (on average 1.2982998454404946) internal successors, (840), 668 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:20,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 840 transitions. [2022-07-13 19:11:20,637 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 840 transitions. Word has length 97 [2022-07-13 19:11:20,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:20,637 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 840 transitions. [2022-07-13 19:11:20,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:20,637 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 840 transitions. [2022-07-13 19:11:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:20,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:20,638 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] [2022-07-13 19:11:20,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-13 19:11:20,639 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:20,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:20,639 INFO L85 PathProgramCache]: Analyzing trace with hash -377306428, now seen corresponding path program 1 times [2022-07-13 19:11:20,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:20,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154124352] [2022-07-13 19:11:20,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:20,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:20,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:20,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154124352] [2022-07-13 19:11:20,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154124352] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:20,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:20,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:20,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534123582] [2022-07-13 19:11:20,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:20,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:20,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:20,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:20,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:20,708 INFO L87 Difference]: Start difference. First operand 669 states and 840 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:22,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:22,151 INFO L93 Difference]: Finished difference Result 1156 states and 1500 transitions. [2022-07-13 19:11:22,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:22,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:22,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:22,153 INFO L225 Difference]: With dead ends: 1156 [2022-07-13 19:11:22,153 INFO L226 Difference]: Without dead ends: 1080 [2022-07-13 19:11:22,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:22,156 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 3312 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3312 SdHoareTripleChecker+Valid, 2690 SdHoareTripleChecker+Invalid, 2257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:22,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3312 Valid, 2690 Invalid, 2257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:11:22,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-07-13 19:11:22,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 665. [2022-07-13 19:11:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 643 states have (on average 1.2986003110419906) internal successors, (835), 664 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:22,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 835 transitions. [2022-07-13 19:11:22,379 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 835 transitions. Word has length 97 [2022-07-13 19:11:22,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:22,380 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 835 transitions. [2022-07-13 19:11:22,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:22,380 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 835 transitions. [2022-07-13 19:11:22,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:22,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:22,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:22,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-13 19:11:22,381 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:22,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:22,382 INFO L85 PathProgramCache]: Analyzing trace with hash -800281311, now seen corresponding path program 1 times [2022-07-13 19:11:22,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:22,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108619467] [2022-07-13 19:11:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:22,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:22,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:22,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108619467] [2022-07-13 19:11:22,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108619467] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:22,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:22,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:22,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840323734] [2022-07-13 19:11:22,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:22,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:22,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:22,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:22,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:22,461 INFO L87 Difference]: Start difference. First operand 665 states and 835 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:23,999 INFO L93 Difference]: Finished difference Result 1085 states and 1391 transitions. [2022-07-13 19:11:24,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:24,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:24,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:24,001 INFO L225 Difference]: With dead ends: 1085 [2022-07-13 19:11:24,001 INFO L226 Difference]: Without dead ends: 1080 [2022-07-13 19:11:24,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:24,003 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 2035 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:24,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 2696 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:11:24,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-07-13 19:11:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 661. [2022-07-13 19:11:24,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 639 states have (on average 1.2989045383411582) internal successors, (830), 660 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:24,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 830 transitions. [2022-07-13 19:11:24,217 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 830 transitions. Word has length 97 [2022-07-13 19:11:24,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:24,217 INFO L495 AbstractCegarLoop]: Abstraction has 661 states and 830 transitions. [2022-07-13 19:11:24,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:24,218 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 830 transitions. [2022-07-13 19:11:24,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:24,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:24,218 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] [2022-07-13 19:11:24,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-13 19:11:24,219 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:24,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:24,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1416715659, now seen corresponding path program 1 times [2022-07-13 19:11:24,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:24,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238764928] [2022-07-13 19:11:24,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:24,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:24,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:24,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:24,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238764928] [2022-07-13 19:11:24,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238764928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:24,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:24,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:24,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902236345] [2022-07-13 19:11:24,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:24,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:24,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:24,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:24,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:24,353 INFO L87 Difference]: Start difference. First operand 661 states and 830 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:25,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:25,847 INFO L93 Difference]: Finished difference Result 1156 states and 1498 transitions. [2022-07-13 19:11:25,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:25,848 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:25,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:25,849 INFO L225 Difference]: With dead ends: 1156 [2022-07-13 19:11:25,849 INFO L226 Difference]: Without dead ends: 1080 [2022-07-13 19:11:25,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:25,850 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 2921 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2921 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:25,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2921 Valid, 2706 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:11:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2022-07-13 19:11:26,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 657. [2022-07-13 19:11:26,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 635 states have (on average 1.2992125984251968) internal successors, (825), 656 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 825 transitions. [2022-07-13 19:11:26,057 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 825 transitions. Word has length 97 [2022-07-13 19:11:26,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:26,057 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 825 transitions. [2022-07-13 19:11:26,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:26,058 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 825 transitions. [2022-07-13 19:11:26,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:26,059 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:26,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:26,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-13 19:11:26,059 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:26,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:26,059 INFO L85 PathProgramCache]: Analyzing trace with hash 120151218, now seen corresponding path program 1 times [2022-07-13 19:11:26,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:26,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393357115] [2022-07-13 19:11:26,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:26,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:26,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:26,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393357115] [2022-07-13 19:11:26,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393357115] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:26,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:26,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:26,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506986000] [2022-07-13 19:11:26,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:26,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:26,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:26,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:26,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:26,141 INFO L87 Difference]: Start difference. First operand 657 states and 825 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:27,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:27,684 INFO L93 Difference]: Finished difference Result 1154 states and 1495 transitions. [2022-07-13 19:11:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:27,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:27,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:27,686 INFO L225 Difference]: With dead ends: 1154 [2022-07-13 19:11:27,686 INFO L226 Difference]: Without dead ends: 1079 [2022-07-13 19:11:27,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:27,690 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 3596 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:27,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3596 Valid, 3107 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:11:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2022-07-13 19:11:27,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 656. [2022-07-13 19:11:27,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 634 states have (on average 1.2981072555205047) internal successors, (823), 655 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:27,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 823 transitions. [2022-07-13 19:11:27,891 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 823 transitions. Word has length 97 [2022-07-13 19:11:27,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:27,892 INFO L495 AbstractCegarLoop]: Abstraction has 656 states and 823 transitions. [2022-07-13 19:11:27,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:27,892 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 823 transitions. [2022-07-13 19:11:27,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:27,893 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:27,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:27,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-13 19:11:27,893 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:27,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:27,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1143474343, now seen corresponding path program 1 times [2022-07-13 19:11:27,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:27,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489380400] [2022-07-13 19:11:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:27,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:27,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:27,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489380400] [2022-07-13 19:11:27,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489380400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:27,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:27,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:27,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40114681] [2022-07-13 19:11:27,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:27,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:27,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:27,991 INFO L87 Difference]: Start difference. First operand 656 states and 823 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:29,575 INFO L93 Difference]: Finished difference Result 1153 states and 1493 transitions. [2022-07-13 19:11:29,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:29,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:29,577 INFO L225 Difference]: With dead ends: 1153 [2022-07-13 19:11:29,577 INFO L226 Difference]: Without dead ends: 1078 [2022-07-13 19:11:29,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:29,578 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 3576 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 2283 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3576 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:29,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3576 Valid, 3155 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2283 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:11:29,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-07-13 19:11:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 655. [2022-07-13 19:11:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 633 states have (on average 1.296998420221169) internal successors, (821), 654 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 821 transitions. [2022-07-13 19:11:29,782 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 821 transitions. Word has length 97 [2022-07-13 19:11:29,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:29,783 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 821 transitions. [2022-07-13 19:11:29,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 821 transitions. [2022-07-13 19:11:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:29,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:29,784 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] [2022-07-13 19:11:29,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-13 19:11:29,784 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:29,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1624946029, now seen corresponding path program 1 times [2022-07-13 19:11:29,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:29,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489410227] [2022-07-13 19:11:29,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:29,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:29,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:29,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489410227] [2022-07-13 19:11:29,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489410227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:29,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:29,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:29,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603531131] [2022-07-13 19:11:29,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:29,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:29,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:29,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:29,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:29,903 INFO L87 Difference]: Start difference. First operand 655 states and 821 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:31,693 INFO L93 Difference]: Finished difference Result 1154 states and 1493 transitions. [2022-07-13 19:11:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:31,693 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:31,695 INFO L225 Difference]: With dead ends: 1154 [2022-07-13 19:11:31,695 INFO L226 Difference]: Without dead ends: 1078 [2022-07-13 19:11:31,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:31,696 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 3466 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3466 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:31,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3466 Valid, 2960 Invalid, 2445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 2234 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:11:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2022-07-13 19:11:31,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 651. [2022-07-13 19:11:31,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 629 states have (on average 1.2972972972972974) internal successors, (816), 650 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:31,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 816 transitions. [2022-07-13 19:11:31,955 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 816 transitions. Word has length 97 [2022-07-13 19:11:31,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:31,955 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 816 transitions. [2022-07-13 19:11:31,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:31,955 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 816 transitions. [2022-07-13 19:11:31,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:31,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:31,957 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] [2022-07-13 19:11:31,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-13 19:11:31,957 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:31,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1619562240, now seen corresponding path program 1 times [2022-07-13 19:11:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:31,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531273087] [2022-07-13 19:11:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:31,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:32,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:32,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531273087] [2022-07-13 19:11:32,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531273087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:32,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:32,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:11:32,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980276169] [2022-07-13 19:11:32,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:32,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:32,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:32,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:32,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:32,113 INFO L87 Difference]: Start difference. First operand 651 states and 816 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:35,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:35,298 INFO L93 Difference]: Finished difference Result 1516 states and 2022 transitions. [2022-07-13 19:11:35,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:11:35,299 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:35,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:35,300 INFO L225 Difference]: With dead ends: 1516 [2022-07-13 19:11:35,300 INFO L226 Difference]: Without dead ends: 1441 [2022-07-13 19:11:35,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:11:35,301 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 6584 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 2773 mSolverCounterSat, 889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6584 SdHoareTripleChecker+Valid, 3519 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 2773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:35,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6584 Valid, 3519 Invalid, 3662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [889 Valid, 2773 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:11:35,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2022-07-13 19:11:35,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 655. [2022-07-13 19:11:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 633 states have (on average 1.2954186413902053) internal successors, (820), 654 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:35,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 820 transitions. [2022-07-13 19:11:35,518 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 820 transitions. Word has length 97 [2022-07-13 19:11:35,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:35,518 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 820 transitions. [2022-07-13 19:11:35,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 820 transitions. [2022-07-13 19:11:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:35,519 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:35,519 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] [2022-07-13 19:11:35,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-13 19:11:35,520 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:35,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:35,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1846486582, now seen corresponding path program 1 times [2022-07-13 19:11:35,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:35,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589978431] [2022-07-13 19:11:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:35,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:35,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:35,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589978431] [2022-07-13 19:11:35,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589978431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:35,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:35,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:35,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687748308] [2022-07-13 19:11:35,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:35,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:35,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:35,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:35,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:35,601 INFO L87 Difference]: Start difference. First operand 655 states and 820 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:37,424 INFO L93 Difference]: Finished difference Result 1152 states and 1489 transitions. [2022-07-13 19:11:37,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:37,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:37,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:37,427 INFO L225 Difference]: With dead ends: 1152 [2022-07-13 19:11:37,427 INFO L226 Difference]: Without dead ends: 1077 [2022-07-13 19:11:37,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:37,441 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 3579 mSDsluCounter, 2497 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3579 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:37,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3579 Valid, 3111 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 19:11:37,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-07-13 19:11:37,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 655. [2022-07-13 19:11:37,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 633 states have (on average 1.2938388625592416) internal successors, (819), 654 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:37,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 819 transitions. [2022-07-13 19:11:37,664 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 819 transitions. Word has length 97 [2022-07-13 19:11:37,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:37,664 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 819 transitions. [2022-07-13 19:11:37,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:37,665 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 819 transitions. [2022-07-13 19:11:37,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:37,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:37,666 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] [2022-07-13 19:11:37,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-13 19:11:37,666 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:37,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:37,666 INFO L85 PathProgramCache]: Analyzing trace with hash -969581064, now seen corresponding path program 1 times [2022-07-13 19:11:37,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:37,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354490030] [2022-07-13 19:11:37,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:37,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:37,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:37,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:37,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354490030] [2022-07-13 19:11:37,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354490030] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:37,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:37,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:37,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421410251] [2022-07-13 19:11:37,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:37,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:37,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:37,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:37,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:37,752 INFO L87 Difference]: Start difference. First operand 655 states and 819 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:39,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:39,345 INFO L93 Difference]: Finished difference Result 1156 states and 1492 transitions. [2022-07-13 19:11:39,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:39,346 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:39,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:39,347 INFO L225 Difference]: With dead ends: 1156 [2022-07-13 19:11:39,347 INFO L226 Difference]: Without dead ends: 1077 [2022-07-13 19:11:39,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:39,348 INFO L413 NwaCegarLoop]: 679 mSDtfsCounter, 3771 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3771 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:39,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3771 Valid, 2718 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:11:39,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-07-13 19:11:39,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 651. [2022-07-13 19:11:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 629 states have (on average 1.2941176470588236) internal successors, (814), 650 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:39,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 814 transitions. [2022-07-13 19:11:39,546 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 814 transitions. Word has length 97 [2022-07-13 19:11:39,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:39,547 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 814 transitions. [2022-07-13 19:11:39,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 814 transitions. [2022-07-13 19:11:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:39,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:39,548 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] [2022-07-13 19:11:39,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-13 19:11:39,548 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:39,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:39,549 INFO L85 PathProgramCache]: Analyzing trace with hash -929040564, now seen corresponding path program 1 times [2022-07-13 19:11:39,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:39,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140649146] [2022-07-13 19:11:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:39,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:39,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140649146] [2022-07-13 19:11:39,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140649146] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:39,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:39,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585675295] [2022-07-13 19:11:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:39,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:39,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:39,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:39,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:39,647 INFO L87 Difference]: Start difference. First operand 651 states and 814 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:41,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:41,137 INFO L93 Difference]: Finished difference Result 1153 states and 1488 transitions. [2022-07-13 19:11:41,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:41,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:41,139 INFO L225 Difference]: With dead ends: 1153 [2022-07-13 19:11:41,139 INFO L226 Difference]: Without dead ends: 1077 [2022-07-13 19:11:41,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:41,139 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 2004 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 2040 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2004 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:41,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2004 Valid, 2721 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2040 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:11:41,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-07-13 19:11:41,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 647. [2022-07-13 19:11:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.2944) internal successors, (809), 646 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 809 transitions. [2022-07-13 19:11:41,342 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 809 transitions. Word has length 97 [2022-07-13 19:11:41,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:41,343 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 809 transitions. [2022-07-13 19:11:41,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:41,343 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 809 transitions. [2022-07-13 19:11:41,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:41,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:41,352 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] [2022-07-13 19:11:41,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-13 19:11:41,353 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:41,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:41,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1976743709, now seen corresponding path program 1 times [2022-07-13 19:11:41,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:41,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654856690] [2022-07-13 19:11:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:41,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:41,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:41,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654856690] [2022-07-13 19:11:41,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654856690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:41,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:41,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:41,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457067721] [2022-07-13 19:11:41,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:41,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:41,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:41,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:41,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:41,455 INFO L87 Difference]: Start difference. First operand 647 states and 809 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:43,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:43,098 INFO L93 Difference]: Finished difference Result 1151 states and 1485 transitions. [2022-07-13 19:11:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:43,098 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:43,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:43,099 INFO L225 Difference]: With dead ends: 1151 [2022-07-13 19:11:43,099 INFO L226 Difference]: Without dead ends: 1077 [2022-07-13 19:11:43,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:43,100 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 3559 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:43,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 3131 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:11:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-07-13 19:11:43,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 647. [2022-07-13 19:11:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 625 states have (on average 1.2928) internal successors, (808), 646 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 808 transitions. [2022-07-13 19:11:43,317 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 808 transitions. Word has length 97 [2022-07-13 19:11:43,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:43,318 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 808 transitions. [2022-07-13 19:11:43,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:43,318 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 808 transitions. [2022-07-13 19:11:43,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:43,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:43,319 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] [2022-07-13 19:11:43,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-13 19:11:43,319 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1982533010, now seen corresponding path program 1 times [2022-07-13 19:11:43,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:43,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197469803] [2022-07-13 19:11:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:43,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:43,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:43,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:43,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197469803] [2022-07-13 19:11:43,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197469803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:43,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:43,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:43,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088538510] [2022-07-13 19:11:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:43,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:43,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:43,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:43,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:43,406 INFO L87 Difference]: Start difference. First operand 647 states and 808 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:44,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:44,887 INFO L93 Difference]: Finished difference Result 1156 states and 1489 transitions. [2022-07-13 19:11:44,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:44,888 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:44,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:44,889 INFO L225 Difference]: With dead ends: 1156 [2022-07-13 19:11:44,889 INFO L226 Difference]: Without dead ends: 1077 [2022-07-13 19:11:44,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:44,890 INFO L413 NwaCegarLoop]: 684 mSDtfsCounter, 2866 mSDsluCounter, 2054 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:44,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2866 Valid, 2738 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:11:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2022-07-13 19:11:45,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 643. [2022-07-13 19:11:45,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 621 states have (on average 1.2930756843800322) internal successors, (803), 642 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 803 transitions. [2022-07-13 19:11:45,088 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 803 transitions. Word has length 97 [2022-07-13 19:11:45,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:45,088 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 803 transitions. [2022-07-13 19:11:45,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 803 transitions. [2022-07-13 19:11:45,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-13 19:11:45,089 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:45,089 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] [2022-07-13 19:11:45,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-07-13 19:11:45,089 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:45,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:45,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1521188561, now seen corresponding path program 1 times [2022-07-13 19:11:45,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:45,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651046322] [2022-07-13 19:11:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:45,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:45,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:45,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651046322] [2022-07-13 19:11:45,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651046322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:45,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:45,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:11:45,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733474858] [2022-07-13 19:11:45,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:45,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:11:45,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:11:45,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:11:45,159 INFO L87 Difference]: Start difference. First operand 643 states and 803 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:46,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:46,580 INFO L93 Difference]: Finished difference Result 1200 states and 1551 transitions. [2022-07-13 19:11:46,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-13 19:11:46,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2022-07-13 19:11:46,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:46,581 INFO L225 Difference]: With dead ends: 1200 [2022-07-13 19:11:46,581 INFO L226 Difference]: Without dead ends: 1109 [2022-07-13 19:11:46,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:46,582 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 2591 mSDsluCounter, 2447 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 2439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:46,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2591 Valid, 3253 Invalid, 2439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:11:46,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-07-13 19:11:46,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 639. [2022-07-13 19:11:46,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 617 states have (on average 1.293354943273906) internal successors, (798), 638 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 798 transitions. [2022-07-13 19:11:46,783 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 798 transitions. Word has length 97 [2022-07-13 19:11:46,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:46,784 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 798 transitions. [2022-07-13 19:11:46,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:46,784 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 798 transitions. [2022-07-13 19:11:46,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 19:11:46,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:46,785 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] [2022-07-13 19:11:46,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-07-13 19:11:46,785 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:46,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:46,786 INFO L85 PathProgramCache]: Analyzing trace with hash -624675544, now seen corresponding path program 1 times [2022-07-13 19:11:46,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:46,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493825533] [2022-07-13 19:11:46,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:46,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:47,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:47,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:47,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493825533] [2022-07-13 19:11:47,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493825533] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:47,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:47,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:11:47,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552937483] [2022-07-13 19:11:47,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:47,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:47,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:47,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:47,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:47,051 INFO L87 Difference]: Start difference. First operand 639 states and 798 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:48,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:48,737 INFO L93 Difference]: Finished difference Result 1003 states and 1261 transitions. [2022-07-13 19:11:48,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 19:11:48,737 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-13 19:11:48,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:48,739 INFO L225 Difference]: With dead ends: 1003 [2022-07-13 19:11:48,739 INFO L226 Difference]: Without dead ends: 925 [2022-07-13 19:11:48,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-13 19:11:48,739 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 3867 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:48,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3867 Valid, 3853 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 19:11:48,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2022-07-13 19:11:48,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 635. [2022-07-13 19:11:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 614 states have (on average 1.291530944625407) internal successors, (793), 634 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 793 transitions. [2022-07-13 19:11:48,950 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 793 transitions. Word has length 98 [2022-07-13 19:11:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:48,950 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 793 transitions. [2022-07-13 19:11:48,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 793 transitions. [2022-07-13 19:11:48,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 19:11:48,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:48,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:48,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-07-13 19:11:48,951 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:48,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:48,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1226755919, now seen corresponding path program 1 times [2022-07-13 19:11:48,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:48,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425126132] [2022-07-13 19:11:48,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:48,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:49,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:49,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:49,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425126132] [2022-07-13 19:11:49,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425126132] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:49,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:49,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-13 19:11:49,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761383580] [2022-07-13 19:11:49,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:49,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 19:11:49,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:49,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 19:11:49,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:11:49,216 INFO L87 Difference]: Start difference. First operand 635 states and 793 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:51,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:51,776 INFO L93 Difference]: Finished difference Result 1971 states and 2600 transitions. [2022-07-13 19:11:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 19:11:51,777 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-13 19:11:51,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:51,779 INFO L225 Difference]: With dead ends: 1971 [2022-07-13 19:11:51,779 INFO L226 Difference]: Without dead ends: 1864 [2022-07-13 19:11:51,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-13 19:11:51,780 INFO L413 NwaCegarLoop]: 1840 mSDtfsCounter, 4263 mSDsluCounter, 11417 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 13257 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:51,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 13257 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:11:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-07-13 19:11:52,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 602. [2022-07-13 19:11:52,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 584 states have (on average 1.2893835616438356) internal successors, (753), 601 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 753 transitions. [2022-07-13 19:11:52,006 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 753 transitions. Word has length 98 [2022-07-13 19:11:52,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:52,007 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 753 transitions. [2022-07-13 19:11:52,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 753 transitions. [2022-07-13 19:11:52,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 19:11:52,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:52,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:52,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-07-13 19:11:52,009 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:52,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:52,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1185015527, now seen corresponding path program 1 times [2022-07-13 19:11:52,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:52,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288388234] [2022-07-13 19:11:52,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:52,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:52,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:52,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:52,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288388234] [2022-07-13 19:11:52,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288388234] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:52,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:52,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-13 19:11:52,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460948192] [2022-07-13 19:11:52,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:52,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-13 19:11:52,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:52,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 19:11:52,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-13 19:11:52,467 INFO L87 Difference]: Start difference. First operand 602 states and 753 transitions. Second operand has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:54,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:54,666 INFO L93 Difference]: Finished difference Result 1514 states and 1979 transitions. [2022-07-13 19:11:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 19:11:54,667 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-13 19:11:54,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:54,668 INFO L225 Difference]: With dead ends: 1514 [2022-07-13 19:11:54,668 INFO L226 Difference]: Without dead ends: 1381 [2022-07-13 19:11:54,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-07-13 19:11:54,669 INFO L413 NwaCegarLoop]: 1402 mSDtfsCounter, 5266 mSDsluCounter, 8223 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5266 SdHoareTripleChecker+Valid, 9625 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:54,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5266 Valid, 9625 Invalid, 1793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 19:11:54,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-07-13 19:11:54,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 578. [2022-07-13 19:11:54,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 561 states have (on average 1.285204991087344) internal successors, (721), 577 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:54,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 721 transitions. [2022-07-13 19:11:54,903 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 721 transitions. Word has length 98 [2022-07-13 19:11:54,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:54,904 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 721 transitions. [2022-07-13 19:11:54,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:54,904 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 721 transitions. [2022-07-13 19:11:54,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 19:11:54,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:54,905 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] [2022-07-13 19:11:54,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-07-13 19:11:54,905 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:54,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 454771522, now seen corresponding path program 1 times [2022-07-13 19:11:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:54,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378356366] [2022-07-13 19:11:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:54,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:55,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:55,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378356366] [2022-07-13 19:11:55,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378356366] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:55,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:55,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:11:55,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131434306] [2022-07-13 19:11:55,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:55,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:55,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:55,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:55,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:55,102 INFO L87 Difference]: Start difference. First operand 578 states and 721 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:56,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:56,479 INFO L93 Difference]: Finished difference Result 1292 states and 1698 transitions. [2022-07-13 19:11:56,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:11:56,479 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-13 19:11:56,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:56,480 INFO L225 Difference]: With dead ends: 1292 [2022-07-13 19:11:56,481 INFO L226 Difference]: Without dead ends: 1101 [2022-07-13 19:11:56,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:11:56,481 INFO L413 NwaCegarLoop]: 1248 mSDtfsCounter, 3116 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3116 SdHoareTripleChecker+Valid, 5671 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:56,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3116 Valid, 5671 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:11:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2022-07-13 19:11:56,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 461. [2022-07-13 19:11:56,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 449 states have (on average 1.2850779510022272) internal successors, (577), 460 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 577 transitions. [2022-07-13 19:11:56,698 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 577 transitions. Word has length 98 [2022-07-13 19:11:56,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:56,699 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 577 transitions. [2022-07-13 19:11:56,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 577 transitions. [2022-07-13 19:11:56,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 19:11:56,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:56,700 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] [2022-07-13 19:11:56,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-07-13 19:11:56,700 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:56,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:56,700 INFO L85 PathProgramCache]: Analyzing trace with hash 773924719, now seen corresponding path program 1 times [2022-07-13 19:11:56,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:56,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31595017] [2022-07-13 19:11:56,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:56,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:56,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:56,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:56,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31595017] [2022-07-13 19:11:56,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31595017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:56,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:56,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:11:56,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288310213] [2022-07-13 19:11:56,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:56,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:11:56,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:56,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:11:56,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:11:56,903 INFO L87 Difference]: Start difference. First operand 461 states and 577 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:58,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:11:58,198 INFO L93 Difference]: Finished difference Result 1118 states and 1496 transitions. [2022-07-13 19:11:58,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:11:58,198 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-13 19:11:58,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:11:58,199 INFO L225 Difference]: With dead ends: 1118 [2022-07-13 19:11:58,199 INFO L226 Difference]: Without dead ends: 945 [2022-07-13 19:11:58,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:11:58,200 INFO L413 NwaCegarLoop]: 763 mSDtfsCounter, 3422 mSDsluCounter, 3931 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 4694 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:11:58,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3422 Valid, 4694 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:11:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-07-13 19:11:58,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 362. [2022-07-13 19:11:58,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 351 states have (on average 1.2735042735042734) internal successors, (447), 361 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:58,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 447 transitions. [2022-07-13 19:11:58,380 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 447 transitions. Word has length 98 [2022-07-13 19:11:58,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:11:58,380 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 447 transitions. [2022-07-13 19:11:58,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 12 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:11:58,380 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 447 transitions. [2022-07-13 19:11:58,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 19:11:58,381 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:11:58,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:11:58,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-07-13 19:11:58,381 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:11:58,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:11:58,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1439429279, now seen corresponding path program 1 times [2022-07-13 19:11:58,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:11:58,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499912991] [2022-07-13 19:11:58,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:11:58,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:11:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:11:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:11:58,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:11:58,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499912991] [2022-07-13 19:11:58,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499912991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:11:58,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:11:58,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-13 19:11:58,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039177381] [2022-07-13 19:11:58,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:11:58,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-13 19:11:58,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:11:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 19:11:58,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-13 19:11:58,731 INFO L87 Difference]: Start difference. First operand 362 states and 447 transitions. Second operand has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:00,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:00,762 INFO L93 Difference]: Finished difference Result 1132 states and 1499 transitions. [2022-07-13 19:12:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-13 19:12:00,762 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-13 19:12:00,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:00,764 INFO L225 Difference]: With dead ends: 1132 [2022-07-13 19:12:00,764 INFO L226 Difference]: Without dead ends: 1014 [2022-07-13 19:12:00,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-07-13 19:12:00,764 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 2821 mSDsluCounter, 7932 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 9005 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:00,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2821 Valid, 9005 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 19:12:00,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2022-07-13 19:12:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 344. [2022-07-13 19:12:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 333 states have (on average 1.2642642642642643) internal successors, (421), 343 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:00,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 421 transitions. [2022-07-13 19:12:00,947 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 421 transitions. Word has length 98 [2022-07-13 19:12:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:00,947 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 421 transitions. [2022-07-13 19:12:00,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.764705882352941) internal successors, (98), 17 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 421 transitions. [2022-07-13 19:12:00,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-13 19:12:00,948 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:00,948 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] [2022-07-13 19:12:00,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-07-13 19:12:00,949 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:00,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:00,949 INFO L85 PathProgramCache]: Analyzing trace with hash 102691288, now seen corresponding path program 1 times [2022-07-13 19:12:00,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:00,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79070101] [2022-07-13 19:12:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:00,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:01,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:01,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79070101] [2022-07-13 19:12:01,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79070101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:01,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:01,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:01,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815392827] [2022-07-13 19:12:01,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:01,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 19:12:01,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:01,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 19:12:01,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:12:01,151 INFO L87 Difference]: Start difference. First operand 344 states and 421 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:02,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:02,536 INFO L93 Difference]: Finished difference Result 940 states and 1245 transitions. [2022-07-13 19:12:02,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 19:12:02,537 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-07-13 19:12:02,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:02,538 INFO L225 Difference]: With dead ends: 940 [2022-07-13 19:12:02,538 INFO L226 Difference]: Without dead ends: 761 [2022-07-13 19:12:02,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:12:02,541 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 2976 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:02,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2976 Valid, 1764 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:12:02,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-07-13 19:12:02,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 239. [2022-07-13 19:12:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 233 states have (on average 1.2532188841201717) internal successors, (292), 238 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 292 transitions. [2022-07-13 19:12:02,692 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 292 transitions. Word has length 98 [2022-07-13 19:12:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:02,693 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 292 transitions. [2022-07-13 19:12:02,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:02,693 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 292 transitions. [2022-07-13 19:12:02,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-13 19:12:02,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:02,693 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] [2022-07-13 19:12:02,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-07-13 19:12:02,694 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:02,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:02,694 INFO L85 PathProgramCache]: Analyzing trace with hash -798114932, now seen corresponding path program 1 times [2022-07-13 19:12:02,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:02,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889197407] [2022-07-13 19:12:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:02,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:02,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889197407] [2022-07-13 19:12:02,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889197407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:02,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:02,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:02,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752320437] [2022-07-13 19:12:02,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:02,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:02,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:02,821 INFO L87 Difference]: Start difference. First operand 239 states and 292 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:05,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:05,126 INFO L93 Difference]: Finished difference Result 1056 states and 1471 transitions. [2022-07-13 19:12:05,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 19:12:05,127 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-07-13 19:12:05,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:05,128 INFO L225 Difference]: With dead ends: 1056 [2022-07-13 19:12:05,128 INFO L226 Difference]: Without dead ends: 964 [2022-07-13 19:12:05,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-13 19:12:05,129 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 4190 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4190 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:05,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4190 Valid, 1745 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1317 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 19:12:05,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-07-13 19:12:05,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 243. [2022-07-13 19:12:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 237 states have (on average 1.248945147679325) internal successors, (296), 242 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 296 transitions. [2022-07-13 19:12:05,288 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 296 transitions. Word has length 99 [2022-07-13 19:12:05,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:05,288 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 296 transitions. [2022-07-13 19:12:05,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 296 transitions. [2022-07-13 19:12:05,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-13 19:12:05,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:05,289 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] [2022-07-13 19:12:05,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-07-13 19:12:05,290 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:05,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash -595534477, now seen corresponding path program 1 times [2022-07-13 19:12:05,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:05,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639337126] [2022-07-13 19:12:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:05,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:05,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:05,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639337126] [2022-07-13 19:12:05,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639337126] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:05,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:05,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:05,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292727811] [2022-07-13 19:12:05,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:05,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:05,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:05,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:05,400 INFO L87 Difference]: Start difference. First operand 243 states and 296 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:05,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:05,994 INFO L93 Difference]: Finished difference Result 363 states and 455 transitions. [2022-07-13 19:12:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 19:12:05,994 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-07-13 19:12:05,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:05,995 INFO L225 Difference]: With dead ends: 363 [2022-07-13 19:12:05,995 INFO L226 Difference]: Without dead ends: 356 [2022-07-13 19:12:05,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-13 19:12:05,996 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 1176 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:05,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 1203 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:12:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-07-13 19:12:06,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 243. [2022-07-13 19:12:06,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 237 states have (on average 1.2447257383966244) internal successors, (295), 242 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 295 transitions. [2022-07-13 19:12:06,174 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 295 transitions. Word has length 99 [2022-07-13 19:12:06,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:06,174 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 295 transitions. [2022-07-13 19:12:06,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:06,174 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 295 transitions. [2022-07-13 19:12:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-13 19:12:06,175 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:06,175 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] [2022-07-13 19:12:06,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-07-13 19:12:06,175 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:06,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:06,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1808646559, now seen corresponding path program 1 times [2022-07-13 19:12:06,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:06,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839889962] [2022-07-13 19:12:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:06,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:06,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:06,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:06,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839889962] [2022-07-13 19:12:06,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839889962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:06,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:06,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:12:06,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557833729] [2022-07-13 19:12:06,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:06,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:06,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:06,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:06,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:06,394 INFO L87 Difference]: Start difference. First operand 243 states and 295 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:07,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:07,216 INFO L93 Difference]: Finished difference Result 440 states and 566 transitions. [2022-07-13 19:12:07,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:12:07,217 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-07-13 19:12:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:07,218 INFO L225 Difference]: With dead ends: 440 [2022-07-13 19:12:07,218 INFO L226 Difference]: Without dead ends: 362 [2022-07-13 19:12:07,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:12:07,218 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1563 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:07,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 1442 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:12:07,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-07-13 19:12:07,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 239. [2022-07-13 19:12:07,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.2393162393162394) internal successors, (290), 238 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:07,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 290 transitions. [2022-07-13 19:12:07,381 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 290 transitions. Word has length 99 [2022-07-13 19:12:07,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:07,381 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 290 transitions. [2022-07-13 19:12:07,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:07,382 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 290 transitions. [2022-07-13 19:12:07,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-13 19:12:07,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:07,382 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] [2022-07-13 19:12:07,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-07-13 19:12:07,383 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:07,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1661193720, now seen corresponding path program 1 times [2022-07-13 19:12:07,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:07,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956225940] [2022-07-13 19:12:07,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:07,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:07,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:07,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956225940] [2022-07-13 19:12:07,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956225940] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:07,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:07,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:12:07,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112998400] [2022-07-13 19:12:07,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:07,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:07,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:07,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:07,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:07,525 INFO L87 Difference]: Start difference. First operand 239 states and 290 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:08,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:08,077 INFO L93 Difference]: Finished difference Result 434 states and 562 transitions. [2022-07-13 19:12:08,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 19:12:08,077 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-07-13 19:12:08,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:08,078 INFO L225 Difference]: With dead ends: 434 [2022-07-13 19:12:08,078 INFO L226 Difference]: Without dead ends: 349 [2022-07-13 19:12:08,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2022-07-13 19:12:08,079 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 718 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:08,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 1444 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:12:08,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-07-13 19:12:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 228. [2022-07-13 19:12:08,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 224 states have (on average 1.2321428571428572) internal successors, (276), 227 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:08,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 276 transitions. [2022-07-13 19:12:08,235 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 276 transitions. Word has length 99 [2022-07-13 19:12:08,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:08,236 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 276 transitions. [2022-07-13 19:12:08,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:08,236 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 276 transitions. [2022-07-13 19:12:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-13 19:12:08,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:08,236 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] [2022-07-13 19:12:08,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-07-13 19:12:08,237 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1179990787, now seen corresponding path program 1 times [2022-07-13 19:12:08,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:08,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807185172] [2022-07-13 19:12:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:08,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:08,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:08,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:08,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807185172] [2022-07-13 19:12:08,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807185172] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:08,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:08,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:08,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685343509] [2022-07-13 19:12:08,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:08,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:08,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:08,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:08,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:08,308 INFO L87 Difference]: Start difference. First operand 228 states and 276 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:09,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:09,018 INFO L93 Difference]: Finished difference Result 429 states and 555 transitions. [2022-07-13 19:12:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 19:12:09,018 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-07-13 19:12:09,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:09,019 INFO L225 Difference]: With dead ends: 429 [2022-07-13 19:12:09,019 INFO L226 Difference]: Without dead ends: 337 [2022-07-13 19:12:09,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-13 19:12:09,019 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 721 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:09,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 835 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:12:09,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-07-13 19:12:09,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 224. [2022-07-13 19:12:09,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 220 states have (on average 1.231818181818182) internal successors, (271), 223 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:09,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 271 transitions. [2022-07-13 19:12:09,220 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 271 transitions. Word has length 100 [2022-07-13 19:12:09,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:09,220 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 271 transitions. [2022-07-13 19:12:09,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:09,221 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 271 transitions. [2022-07-13 19:12:09,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-13 19:12:09,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:09,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:09,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-07-13 19:12:09,222 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:09,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:09,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1356067843, now seen corresponding path program 1 times [2022-07-13 19:12:09,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:09,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779743730] [2022-07-13 19:12:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:09,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:09,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:09,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:09,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779743730] [2022-07-13 19:12:09,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779743730] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:09,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:09,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 19:12:09,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705403417] [2022-07-13 19:12:09,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:09,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:09,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:09,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:09,361 INFO L87 Difference]: Start difference. First operand 224 states and 271 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:10,783 INFO L93 Difference]: Finished difference Result 529 states and 697 transitions. [2022-07-13 19:12:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 19:12:10,783 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-07-13 19:12:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:10,784 INFO L225 Difference]: With dead ends: 529 [2022-07-13 19:12:10,784 INFO L226 Difference]: Without dead ends: 522 [2022-07-13 19:12:10,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-07-13 19:12:10,785 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 2422 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2422 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:10,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2422 Valid, 1106 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 19:12:10,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2022-07-13 19:12:10,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 228. [2022-07-13 19:12:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 224 states have (on average 1.2276785714285714) internal successors, (275), 227 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 275 transitions. [2022-07-13 19:12:10,940 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 275 transitions. Word has length 100 [2022-07-13 19:12:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:10,940 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 275 transitions. [2022-07-13 19:12:10,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 275 transitions. [2022-07-13 19:12:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-13 19:12:10,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:10,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:10,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-07-13 19:12:10,941 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:10,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:10,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1646491527, now seen corresponding path program 1 times [2022-07-13 19:12:10,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:10,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627381442] [2022-07-13 19:12:10,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:10,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:11,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:11,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627381442] [2022-07-13 19:12:11,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627381442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:11,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:11,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:12:11,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614342045] [2022-07-13 19:12:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:11,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:11,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:11,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:11,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:11,163 INFO L87 Difference]: Start difference. First operand 228 states and 275 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:12,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:12,344 INFO L93 Difference]: Finished difference Result 487 states and 645 transitions. [2022-07-13 19:12:12,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:12:12,345 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-07-13 19:12:12,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:12,346 INFO L225 Difference]: With dead ends: 487 [2022-07-13 19:12:12,346 INFO L226 Difference]: Without dead ends: 481 [2022-07-13 19:12:12,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:12:12,346 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 1234 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:12,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 3228 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 19:12:12,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-07-13 19:12:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 222. [2022-07-13 19:12:12,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.2283105022831051) internal successors, (269), 221 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:12,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 269 transitions. [2022-07-13 19:12:12,506 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 269 transitions. Word has length 101 [2022-07-13 19:12:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:12,507 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 269 transitions. [2022-07-13 19:12:12,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:12,507 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 269 transitions. [2022-07-13 19:12:12,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-13 19:12:12,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:12,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:12,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-07-13 19:12:12,508 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:12,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:12,508 INFO L85 PathProgramCache]: Analyzing trace with hash -2024360146, now seen corresponding path program 1 times [2022-07-13 19:12:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:12,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229470138] [2022-07-13 19:12:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:12,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:13,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:13,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229470138] [2022-07-13 19:12:13,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229470138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:13,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:13,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-07-13 19:12:13,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033569026] [2022-07-13 19:12:13,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:13,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-13 19:12:13,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:13,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-13 19:12:13,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=951, Unknown=0, NotChecked=0, Total=1056 [2022-07-13 19:12:13,483 INFO L87 Difference]: Start difference. First operand 222 states and 269 transitions. Second operand has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:19,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:19,676 INFO L93 Difference]: Finished difference Result 971 states and 1266 transitions. [2022-07-13 19:12:19,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-13 19:12:19,676 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-07-13 19:12:19,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:19,677 INFO L225 Difference]: With dead ends: 971 [2022-07-13 19:12:19,677 INFO L226 Difference]: Without dead ends: 963 [2022-07-13 19:12:19,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=579, Invalid=3081, Unknown=0, NotChecked=0, Total=3660 [2022-07-13 19:12:19,678 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 3236 mSDsluCounter, 14563 mSDsCounter, 0 mSdLazyCounter, 7715 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 15454 SdHoareTripleChecker+Invalid, 7819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 7715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:19,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 15454 Invalid, 7819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 7715 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-13 19:12:19,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2022-07-13 19:12:19,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 246. [2022-07-13 19:12:19,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 243 states have (on average 1.2263374485596708) internal successors, (298), 245 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 298 transitions. [2022-07-13 19:12:19,875 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 298 transitions. Word has length 101 [2022-07-13 19:12:19,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:19,876 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 298 transitions. [2022-07-13 19:12:19,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 33 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:19,876 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 298 transitions. [2022-07-13 19:12:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-13 19:12:19,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:19,876 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] [2022-07-13 19:12:19,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-07-13 19:12:19,877 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:19,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1687868530, now seen corresponding path program 1 times [2022-07-13 19:12:19,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:19,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194819497] [2022-07-13 19:12:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:19,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:19,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:19,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194819497] [2022-07-13 19:12:19,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194819497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:19,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:19,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:19,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904225069] [2022-07-13 19:12:19,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:19,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 19:12:19,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:19,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 19:12:19,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-13 19:12:19,957 INFO L87 Difference]: Start difference. First operand 246 states and 298 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:20,582 INFO L93 Difference]: Finished difference Result 352 states and 441 transitions. [2022-07-13 19:12:20,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 19:12:20,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-07-13 19:12:20,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:20,583 INFO L225 Difference]: With dead ends: 352 [2022-07-13 19:12:20,583 INFO L226 Difference]: Without dead ends: 345 [2022-07-13 19:12:20,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-07-13 19:12:20,584 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1044 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:20,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 956 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:12:20,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-07-13 19:12:20,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 242. [2022-07-13 19:12:20,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.2259414225941423) internal successors, (293), 241 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:20,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 293 transitions. [2022-07-13 19:12:20,759 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 293 transitions. Word has length 101 [2022-07-13 19:12:20,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:20,760 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 293 transitions. [2022-07-13 19:12:20,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:20,760 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 293 transitions. [2022-07-13 19:12:20,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 19:12:20,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:20,760 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] [2022-07-13 19:12:20,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-07-13 19:12:20,761 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:20,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1222193715, now seen corresponding path program 1 times [2022-07-13 19:12:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:20,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529322378] [2022-07-13 19:12:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:20,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:20,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:20,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:20,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529322378] [2022-07-13 19:12:20,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529322378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:20,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:20,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:12:20,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665030487] [2022-07-13 19:12:20,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:20,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:20,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:20,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:20,953 INFO L87 Difference]: Start difference. First operand 242 states and 293 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:22,063 INFO L93 Difference]: Finished difference Result 509 states and 676 transitions. [2022-07-13 19:12:22,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:12:22,063 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-07-13 19:12:22,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:22,064 INFO L225 Difference]: With dead ends: 509 [2022-07-13 19:12:22,064 INFO L226 Difference]: Without dead ends: 494 [2022-07-13 19:12:22,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:12:22,065 INFO L413 NwaCegarLoop]: 562 mSDtfsCounter, 1189 mSDsluCounter, 2719 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 3281 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:22,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 3281 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:12:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2022-07-13 19:12:22,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 206. [2022-07-13 19:12:22,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 204 states have (on average 1.2303921568627452) internal successors, (251), 205 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 251 transitions. [2022-07-13 19:12:22,231 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 251 transitions. Word has length 102 [2022-07-13 19:12:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:22,232 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 251 transitions. [2022-07-13 19:12:22,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 251 transitions. [2022-07-13 19:12:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 19:12:22,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:22,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:12:22,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-07-13 19:12:22,233 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:22,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:22,233 INFO L85 PathProgramCache]: Analyzing trace with hash 859668190, now seen corresponding path program 1 times [2022-07-13 19:12:22,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:22,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495412436] [2022-07-13 19:12:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:22,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:22,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:22,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:22,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495412436] [2022-07-13 19:12:22,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495412436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:22,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:22,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 19:12:22,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708251912] [2022-07-13 19:12:22,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:22,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 19:12:22,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:22,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 19:12:22,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-13 19:12:22,439 INFO L87 Difference]: Start difference. First operand 206 states and 251 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:23,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:23,588 INFO L93 Difference]: Finished difference Result 509 states and 676 transitions. [2022-07-13 19:12:23,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:12:23,589 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-07-13 19:12:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:23,589 INFO L225 Difference]: With dead ends: 509 [2022-07-13 19:12:23,590 INFO L226 Difference]: Without dead ends: 485 [2022-07-13 19:12:23,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-13 19:12:23,590 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 1234 mSDsluCounter, 2583 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:23,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 3167 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 19:12:23,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2022-07-13 19:12:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 182. [2022-07-13 19:12:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.2430939226519337) internal successors, (225), 181 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 225 transitions. [2022-07-13 19:12:23,786 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 225 transitions. Word has length 102 [2022-07-13 19:12:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:23,787 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 225 transitions. [2022-07-13 19:12:23,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 225 transitions. [2022-07-13 19:12:23,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-13 19:12:23,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:23,788 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] [2022-07-13 19:12:23,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-07-13 19:12:23,788 INFO L420 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:23,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:23,789 INFO L85 PathProgramCache]: Analyzing trace with hash -145342212, now seen corresponding path program 1 times [2022-07-13 19:12:23,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:23,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668272472] [2022-07-13 19:12:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:23,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:23,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:23,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668272472] [2022-07-13 19:12:23,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668272472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:23,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:23,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:23,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925996744] [2022-07-13 19:12:23,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:23,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:12:23,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:23,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:12:23,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:12:23,857 INFO L87 Difference]: Start difference. First operand 182 states and 225 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:25,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:25,960 INFO L93 Difference]: Finished difference Result 1070 states and 1545 transitions. [2022-07-13 19:12:25,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 19:12:25,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-07-13 19:12:25,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:25,962 INFO L225 Difference]: With dead ends: 1070 [2022-07-13 19:12:25,962 INFO L226 Difference]: Without dead ends: 996 [2022-07-13 19:12:25,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-07-13 19:12:25,963 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 2283 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:25,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 1863 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:12:25,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2022-07-13 19:12:26,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 254. [2022-07-13 19:12:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.3122529644268774) internal successors, (332), 253 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 332 transitions. [2022-07-13 19:12:26,272 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 332 transitions. Word has length 132 [2022-07-13 19:12:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:26,272 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 332 transitions. [2022-07-13 19:12:26,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.5) internal successors, (132), 8 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 332 transitions. [2022-07-13 19:12:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-13 19:12:26,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:26,273 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] [2022-07-13 19:12:26,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-07-13 19:12:26,274 INFO L420 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:26,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:26,274 INFO L85 PathProgramCache]: Analyzing trace with hash -226636237, now seen corresponding path program 1 times [2022-07-13 19:12:26,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:26,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610910152] [2022-07-13 19:12:26,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:26,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:26,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:26,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610910152] [2022-07-13 19:12:26,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610910152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:26,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:26,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:26,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124436100] [2022-07-13 19:12:26,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:26,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:12:26,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:12:26,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:12:26,336 INFO L87 Difference]: Start difference. First operand 254 states and 332 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:28,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:28,189 INFO L93 Difference]: Finished difference Result 1204 states and 1742 transitions. [2022-07-13 19:12:28,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 19:12:28,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-07-13 19:12:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:28,191 INFO L225 Difference]: With dead ends: 1204 [2022-07-13 19:12:28,191 INFO L226 Difference]: Without dead ends: 1058 [2022-07-13 19:12:28,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:12:28,191 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1886 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:28,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 1226 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:12:28,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-07-13 19:12:28,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 398. [2022-07-13 19:12:28,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 397 states have (on average 1.3778337531486147) internal successors, (547), 397 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:28,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 547 transitions. [2022-07-13 19:12:28,803 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 547 transitions. Word has length 134 [2022-07-13 19:12:28,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:28,803 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 547 transitions. [2022-07-13 19:12:28,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:28,803 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 547 transitions. [2022-07-13 19:12:28,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-13 19:12:28,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:28,804 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] [2022-07-13 19:12:28,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-07-13 19:12:28,804 INFO L420 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:28,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:28,805 INFO L85 PathProgramCache]: Analyzing trace with hash -517447956, now seen corresponding path program 1 times [2022-07-13 19:12:28,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:28,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739844919] [2022-07-13 19:12:28,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:28,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:28,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:28,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:28,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739844919] [2022-07-13 19:12:28,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739844919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:28,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:28,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:12:28,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157541751] [2022-07-13 19:12:28,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:28,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:12:28,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:12:28,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:12:28,839 INFO L87 Difference]: Start difference. First operand 398 states and 547 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:29,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:29,964 INFO L93 Difference]: Finished difference Result 952 states and 1365 transitions. [2022-07-13 19:12:29,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:12:29,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-07-13 19:12:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:29,965 INFO L225 Difference]: With dead ends: 952 [2022-07-13 19:12:29,965 INFO L226 Difference]: Without dead ends: 662 [2022-07-13 19:12:29,966 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 [2022-07-13 19:12:29,966 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 133 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:29,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 361 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:12:29,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2022-07-13 19:12:31,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 656. [2022-07-13 19:12:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.4015267175572519) internal successors, (918), 655 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 918 transitions. [2022-07-13 19:12:31,082 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 918 transitions. Word has length 134 [2022-07-13 19:12:31,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:31,083 INFO L495 AbstractCegarLoop]: Abstraction has 656 states and 918 transitions. [2022-07-13 19:12:31,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:31,083 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 918 transitions. [2022-07-13 19:12:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-13 19:12:31,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:31,084 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] [2022-07-13 19:12:31,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-07-13 19:12:31,084 INFO L420 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:31,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:31,085 INFO L85 PathProgramCache]: Analyzing trace with hash -450954444, now seen corresponding path program 1 times [2022-07-13 19:12:31,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:31,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597864548] [2022-07-13 19:12:31,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:31,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:31,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597864548] [2022-07-13 19:12:31,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597864548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:31,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:31,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:12:31,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448030283] [2022-07-13 19:12:31,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:31,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:12:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:31,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:12:31,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:12:31,121 INFO L87 Difference]: Start difference. First operand 656 states and 918 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:32,256 INFO L93 Difference]: Finished difference Result 1206 states and 1722 transitions. [2022-07-13 19:12:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:12:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-07-13 19:12:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:32,258 INFO L225 Difference]: With dead ends: 1206 [2022-07-13 19:12:32,258 INFO L226 Difference]: Without dead ends: 658 [2022-07-13 19:12:32,259 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 [2022-07-13 19:12:32,259 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 87 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:32,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 378 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:12:32,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-07-13 19:12:33,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 656. [2022-07-13 19:12:33,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.3984732824427482) internal successors, (916), 655 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:33,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 916 transitions. [2022-07-13 19:12:33,357 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 916 transitions. Word has length 134 [2022-07-13 19:12:33,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:33,357 INFO L495 AbstractCegarLoop]: Abstraction has 656 states and 916 transitions. [2022-07-13 19:12:33,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:33,357 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 916 transitions. [2022-07-13 19:12:33,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-13 19:12:33,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:33,358 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] [2022-07-13 19:12:33,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-07-13 19:12:33,358 INFO L420 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:33,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:33,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1829095987, now seen corresponding path program 1 times [2022-07-13 19:12:33,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:33,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863255382] [2022-07-13 19:12:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:33,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:33,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:33,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863255382] [2022-07-13 19:12:33,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863255382] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:33,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:33,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:33,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031353326] [2022-07-13 19:12:33,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:33,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:12:33,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:33,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:12:33,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:12:33,423 INFO L87 Difference]: Start difference. First operand 656 states and 916 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:37,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:37,588 INFO L93 Difference]: Finished difference Result 2445 states and 3528 transitions. [2022-07-13 19:12:37,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 19:12:37,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-07-13 19:12:37,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:37,591 INFO L225 Difference]: With dead ends: 2445 [2022-07-13 19:12:37,591 INFO L226 Difference]: Without dead ends: 2170 [2022-07-13 19:12:37,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:12:37,593 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1753 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:37,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 1303 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:12:37,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2022-07-13 19:12:39,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 1066. [2022-07-13 19:12:39,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 1065 states have (on average 1.4215962441314554) internal successors, (1514), 1065 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:39,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1514 transitions. [2022-07-13 19:12:39,566 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1514 transitions. Word has length 134 [2022-07-13 19:12:39,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:39,566 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1514 transitions. [2022-07-13 19:12:39,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:39,567 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1514 transitions. [2022-07-13 19:12:39,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-13 19:12:39,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:39,568 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] [2022-07-13 19:12:39,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-07-13 19:12:39,568 INFO L420 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:39,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:39,568 INFO L85 PathProgramCache]: Analyzing trace with hash -590721997, now seen corresponding path program 1 times [2022-07-13 19:12:39,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:39,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425526359] [2022-07-13 19:12:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:39,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:39,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:39,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425526359] [2022-07-13 19:12:39,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425526359] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:39,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:39,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:39,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226402142] [2022-07-13 19:12:39,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:39,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:12:39,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:39,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:12:39,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:12:39,632 INFO L87 Difference]: Start difference. First operand 1066 states and 1514 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:44,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:44,387 INFO L93 Difference]: Finished difference Result 2718 states and 3927 transitions. [2022-07-13 19:12:44,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 19:12:44,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-07-13 19:12:44,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:44,390 INFO L225 Difference]: With dead ends: 2718 [2022-07-13 19:12:44,390 INFO L226 Difference]: Without dead ends: 2443 [2022-07-13 19:12:44,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:12:44,391 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1606 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:44,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 1419 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:12:44,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2443 states. [2022-07-13 19:12:46,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2443 to 1339. [2022-07-13 19:12:46,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1338 states have (on average 1.429745889387145) internal successors, (1913), 1338 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:46,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1913 transitions. [2022-07-13 19:12:46,856 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1913 transitions. Word has length 134 [2022-07-13 19:12:46,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:46,856 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1913 transitions. [2022-07-13 19:12:46,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1913 transitions. [2022-07-13 19:12:46,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-13 19:12:46,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:46,857 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] [2022-07-13 19:12:46,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-07-13 19:12:46,857 INFO L420 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:46,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:46,858 INFO L85 PathProgramCache]: Analyzing trace with hash 513822771, now seen corresponding path program 1 times [2022-07-13 19:12:46,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:46,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124339298] [2022-07-13 19:12:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:46,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:46,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:46,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:46,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124339298] [2022-07-13 19:12:46,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124339298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:46,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:46,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:46,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003212364] [2022-07-13 19:12:46,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:46,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:12:46,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:46,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:12:46,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:12:46,919 INFO L87 Difference]: Start difference. First operand 1339 states and 1913 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:12:52,216 INFO L93 Difference]: Finished difference Result 2991 states and 4326 transitions. [2022-07-13 19:12:52,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 19:12:52,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-07-13 19:12:52,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:12:52,219 INFO L225 Difference]: With dead ends: 2991 [2022-07-13 19:12:52,220 INFO L226 Difference]: Without dead ends: 2716 [2022-07-13 19:12:52,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:12:52,220 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1558 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:12:52,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 1566 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:12:52,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2022-07-13 19:12:55,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 1612. [2022-07-13 19:12:55,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1611 states have (on average 1.4351334574798262) internal successors, (2312), 1611 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2312 transitions. [2022-07-13 19:12:55,361 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2312 transitions. Word has length 134 [2022-07-13 19:12:55,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:12:55,361 INFO L495 AbstractCegarLoop]: Abstraction has 1612 states and 2312 transitions. [2022-07-13 19:12:55,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:12:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2312 transitions. [2022-07-13 19:12:55,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-13 19:12:55,362 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:12:55,362 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] [2022-07-13 19:12:55,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-07-13 19:12:55,362 INFO L420 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:12:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:12:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1850617293, now seen corresponding path program 1 times [2022-07-13 19:12:55,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:12:55,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247821933] [2022-07-13 19:12:55,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:12:55,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:12:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:12:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:12:55,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:12:55,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247821933] [2022-07-13 19:12:55,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247821933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:12:55,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:12:55,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 19:12:55,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564389964] [2022-07-13 19:12:55,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:12:55,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 19:12:55,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:12:55,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 19:12:55,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:12:55,427 INFO L87 Difference]: Start difference. First operand 1612 states and 2312 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:01,376 INFO L93 Difference]: Finished difference Result 3264 states and 4725 transitions. [2022-07-13 19:13:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 19:13:01,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2022-07-13 19:13:01,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:01,380 INFO L225 Difference]: With dead ends: 3264 [2022-07-13 19:13:01,380 INFO L226 Difference]: Without dead ends: 2989 [2022-07-13 19:13:01,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-13 19:13:01,380 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1614 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:01,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 1531 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 19:13:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2989 states. [2022-07-13 19:13:04,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2989 to 1885. [2022-07-13 19:13:04,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1884 states have (on average 1.4389596602972399) internal successors, (2711), 1884 states have internal predecessors, (2711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:04,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2711 transitions. [2022-07-13 19:13:04,939 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2711 transitions. Word has length 134 [2022-07-13 19:13:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:04,939 INFO L495 AbstractCegarLoop]: Abstraction has 1885 states and 2711 transitions. [2022-07-13 19:13:04,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2711 transitions. [2022-07-13 19:13:04,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-13 19:13:04,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:04,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:13:04,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-07-13 19:13:04,941 INFO L420 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:13:04,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:04,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1545715399, now seen corresponding path program 1 times [2022-07-13 19:13:04,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:04,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564531535] [2022-07-13 19:13:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:04,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:04,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:04,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:04,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564531535] [2022-07-13 19:13:04,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564531535] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:04,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:04,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:13:04,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224958273] [2022-07-13 19:13:04,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:04,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:13:04,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:04,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:13:04,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:13:04,977 INFO L87 Difference]: Start difference. First operand 1885 states and 2711 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:12,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:12,229 INFO L93 Difference]: Finished difference Result 5335 states and 7721 transitions. [2022-07-13 19:13:12,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:13:12,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 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 135 [2022-07-13 19:13:12,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:12,233 INFO L225 Difference]: With dead ends: 5335 [2022-07-13 19:13:12,233 INFO L226 Difference]: Without dead ends: 3558 [2022-07-13 19:13:12,234 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 [2022-07-13 19:13:12,235 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 106 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:12,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:13:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2022-07-13 19:13:18,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3452. [2022-07-13 19:13:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 1.4395827296435815) internal successors, (4968), 3451 states have internal predecessors, (4968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:19,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 4968 transitions. [2022-07-13 19:13:19,001 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 4968 transitions. Word has length 135 [2022-07-13 19:13:19,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:19,001 INFO L495 AbstractCegarLoop]: Abstraction has 3452 states and 4968 transitions. [2022-07-13 19:13:19,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:19,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 4968 transitions. [2022-07-13 19:13:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-13 19:13:19,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:19,003 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] [2022-07-13 19:13:19,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-07-13 19:13:19,003 INFO L420 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:13:19,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash -83969198, now seen corresponding path program 1 times [2022-07-13 19:13:19,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:19,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351269466] [2022-07-13 19:13:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:19,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:19,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:19,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351269466] [2022-07-13 19:13:19,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351269466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:19,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:19,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:13:19,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317537327] [2022-07-13 19:13:19,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:19,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:13:19,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:19,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:13:19,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:13:19,038 INFO L87 Difference]: Start difference. First operand 3452 states and 4968 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:32,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:13:32,264 INFO L93 Difference]: Finished difference Result 9932 states and 14310 transitions. [2022-07-13 19:13:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 19:13:32,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2022-07-13 19:13:32,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:13:32,271 INFO L225 Difference]: With dead ends: 9932 [2022-07-13 19:13:32,271 INFO L226 Difference]: Without dead ends: 6588 [2022-07-13 19:13:32,272 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 [2022-07-13 19:13:32,275 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 99 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:13:32,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 481 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 19:13:32,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6588 states. [2022-07-13 19:13:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6588 to 6378. [2022-07-13 19:13:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6377 states have (on average 1.4339030892269091) internal successors, (9144), 6377 states have internal predecessors, (9144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 9144 transitions. [2022-07-13 19:13:47,175 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 9144 transitions. Word has length 136 [2022-07-13 19:13:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:13:47,175 INFO L495 AbstractCegarLoop]: Abstraction has 6378 states and 9144 transitions. [2022-07-13 19:13:47,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 19:13:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 9144 transitions. [2022-07-13 19:13:47,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-13 19:13:47,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:13:47,177 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] [2022-07-13 19:13:47,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-07-13 19:13:47,177 INFO L420 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-13 19:13:47,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:13:47,177 INFO L85 PathProgramCache]: Analyzing trace with hash 703509637, now seen corresponding path program 1 times [2022-07-13 19:13:47,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:13:47,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056734853] [2022-07-13 19:13:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:13:47,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:13:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:13:47,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:13:47,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:13:47,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056734853] [2022-07-13 19:13:47,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056734853] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:13:47,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:13:47,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 19:13:47,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413621534] [2022-07-13 19:13:47,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:13:47,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 19:13:47,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:13:47,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 19:13:47,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 19:13:47,217 INFO L87 Difference]: Start difference. First operand 6378 states and 9144 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)