./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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.5.ufo.BOUNDED-10.pals.c.v+lhb-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 8381803db0f296b6c475c94ca7dd8f9a2c79c383b82b37638a653c8556f3f15c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 01:33:38,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 01:33:38,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 01:33:38,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 01:33:38,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 01:33:38,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 01:33:38,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 01:33:38,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 01:33:38,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 01:33:38,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 01:33:38,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 01:33:38,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 01:33:38,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 01:33:38,647 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 01:33:38,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 01:33:38,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 01:33:38,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 01:33:38,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 01:33:38,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 01:33:38,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 01:33:38,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 01:33:38,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 01:33:38,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 01:33:38,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 01:33:38,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 01:33:38,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 01:33:38,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 01:33:38,674 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 01:33:38,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 01:33:38,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 01:33:38,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 01:33:38,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 01:33:38,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 01:33:38,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 01:33:38,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 01:33:38,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 01:33:38,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 01:33:38,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 01:33:38,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 01:33:38,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 01:33:38,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 01:33:38,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-16 01:33:38,719 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 01:33:38,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 01:33:38,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 01:33:38,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 01:33:38,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 01:33:38,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 01:33:38,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 01:33:38,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 01:33:38,722 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 01:33:38,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 01:33:38,723 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 01:33:38,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 01:33:38,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 01:33:38,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 01:33:38,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 01:33:38,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 01:33:38,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 01:33:38,724 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 01:33:38,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 01:33:38,725 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 01:33:38,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 01:33:38,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 01:33:38,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 01:33:38,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 01:33:38,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:33:38,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 01:33:38,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 01:33:38,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 01:33:38,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 01:33:38,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 01:33:38,728 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 01:33:38,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 01:33:38,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 01:33:38,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 01:33:38,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8381803db0f296b6c475c94ca7dd8f9a2c79c383b82b37638a653c8556f3f15c [2021-12-16 01:33:38,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 01:33:38,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 01:33:38,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 01:33:38,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 01:33:38,966 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 01:33:38,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-12-16 01:33:39,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78f016a43/0d0c966124d547f99fc6fd63ba98727c/FLAG80907d932 [2021-12-16 01:33:39,549 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 01:33:39,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-12-16 01:33:39,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78f016a43/0d0c966124d547f99fc6fd63ba98727c/FLAG80907d932 [2021-12-16 01:33:39,794 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78f016a43/0d0c966124d547f99fc6fd63ba98727c [2021-12-16 01:33:39,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 01:33:39,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 01:33:39,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 01:33:39,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 01:33:39,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 01:33:39,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:33:39" (1/1) ... [2021-12-16 01:33:39,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e9e2f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:39, skipping insertion in model container [2021-12-16 01:33:39,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:33:39" (1/1) ... [2021-12-16 01:33:39,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 01:33:39,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 01:33:40,171 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11561,11574] [2021-12-16 01:33:40,197 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15618,15631] [2021-12-16 01:33:40,208 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16839,16852] [2021-12-16 01:33:40,226 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17545,17558] [2021-12-16 01:33:40,236 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19131,19144] [2021-12-16 01:33:40,240 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19837,19850] [2021-12-16 01:33:40,244 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20908,20921] [2021-12-16 01:33:40,254 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23398,23411] [2021-12-16 01:33:40,258 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-16 01:33:40,262 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25144,25157] [2021-12-16 01:33:40,270 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27082,27095] [2021-12-16 01:33:40,291 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31116,31129] [2021-12-16 01:33:40,295 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31825,31838] [2021-12-16 01:33:40,299 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32899,32912] [2021-12-16 01:33:40,307 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34874,34887] [2021-12-16 01:33:40,319 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38255,38268] [2021-12-16 01:33:40,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:33:40,504 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 01:33:40,581 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11561,11574] [2021-12-16 01:33:40,600 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15618,15631] [2021-12-16 01:33:40,605 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16839,16852] [2021-12-16 01:33:40,608 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17545,17558] [2021-12-16 01:33:40,618 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19131,19144] [2021-12-16 01:33:40,620 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19837,19850] [2021-12-16 01:33:40,624 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20908,20921] [2021-12-16 01:33:40,630 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23398,23411] [2021-12-16 01:33:40,633 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24107,24120] [2021-12-16 01:33:40,637 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25144,25157] [2021-12-16 01:33:40,642 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27082,27095] [2021-12-16 01:33:40,651 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31116,31129] [2021-12-16 01:33:40,653 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31825,31838] [2021-12-16 01:33:40,658 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32899,32912] [2021-12-16 01:33:40,672 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34874,34887] [2021-12-16 01:33:40,681 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.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38255,38268] [2021-12-16 01:33:40,765 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 01:33:40,785 INFO L208 MainTranslator]: Completed translation [2021-12-16 01:33:40,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40 WrapperNode [2021-12-16 01:33:40,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 01:33:40,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 01:33:40,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 01:33:40,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 01:33:40,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:40,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:40,917 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3485 [2021-12-16 01:33:40,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 01:33:40,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 01:33:40,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 01:33:40,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 01:33:40,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:40,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:40,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:40,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:40,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:41,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:41,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:41,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 01:33:41,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 01:33:41,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 01:33:41,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 01:33:41,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (1/1) ... [2021-12-16 01:33:41,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 01:33:41,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 01:33:41,071 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) [2021-12-16 01:33:41,077 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 [2021-12-16 01:33:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 01:33:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 01:33:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 01:33:41,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 01:33:41,308 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 01:33:41,309 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 01:33:42,707 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 01:33:42,724 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 01:33:42,725 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 01:33:42,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:33:42 BoogieIcfgContainer [2021-12-16 01:33:42,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 01:33:42,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 01:33:42,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 01:33:42,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 01:33:42,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:33:39" (1/3) ... [2021-12-16 01:33:42,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1ab763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:33:42, skipping insertion in model container [2021-12-16 01:33:42,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:33:40" (2/3) ... [2021-12-16 01:33:42,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1ab763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:33:42, skipping insertion in model container [2021-12-16 01:33:42,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:33:42" (3/3) ... [2021-12-16 01:33:42,735 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-12-16 01:33:42,742 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 01:33:42,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-12-16 01:33:42,782 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 01:33:42,787 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 01:33:42,787 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-12-16 01:33:42,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:42,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-16 01:33:42,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:42,841 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:42,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:42,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:42,849 INFO L85 PathProgramCache]: Analyzing trace with hash -729096350, now seen corresponding path program 1 times [2021-12-16 01:33:42,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:42,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020401464] [2021-12-16 01:33:42,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:42,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:43,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:43,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020401464] [2021-12-16 01:33:43,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020401464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:43,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:43,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:43,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500777213] [2021-12-16 01:33:43,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:43,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:43,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:43,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:43,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:43,260 INFO L87 Difference]: Start difference. First operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 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 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:43,878 INFO L93 Difference]: Finished difference Result 976 states and 1692 transitions. [2021-12-16 01:33:43,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:43,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-12-16 01:33:43,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:43,906 INFO L225 Difference]: With dead ends: 976 [2021-12-16 01:33:43,906 INFO L226 Difference]: Without dead ends: 546 [2021-12-16 01:33:43,924 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:43,926 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 2641 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:43,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2641 Valid, 653 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:33:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-12-16 01:33:43,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2021-12-16 01:33:43,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 530 states have (on average 1.2811320754716982) internal successors, (679), 545 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:43,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 679 transitions. [2021-12-16 01:33:43,990 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 679 transitions. Word has length 72 [2021-12-16 01:33:43,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:43,991 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 679 transitions. [2021-12-16 01:33:43,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:43,992 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 679 transitions. [2021-12-16 01:33:43,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-16 01:33:43,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:43,995 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:43,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 01:33:43,996 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:43,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:43,997 INFO L85 PathProgramCache]: Analyzing trace with hash -42769193, now seen corresponding path program 1 times [2021-12-16 01:33:43,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:43,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660423866] [2021-12-16 01:33:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:43,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:44,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:44,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:44,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660423866] [2021-12-16 01:33:44,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660423866] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:44,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:44,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:44,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526512656] [2021-12-16 01:33:44,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:44,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:44,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:44,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:44,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:44,156 INFO L87 Difference]: Start difference. First operand 546 states and 679 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:44,486 INFO L93 Difference]: Finished difference Result 884 states and 1135 transitions. [2021-12-16 01:33:44,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:44,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-12-16 01:33:44,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:44,491 INFO L225 Difference]: With dead ends: 884 [2021-12-16 01:33:44,491 INFO L226 Difference]: Without dead ends: 482 [2021-12-16 01:33:44,493 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:44,494 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1717 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:44,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1717 Valid, 354 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:33:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-12-16 01:33:44,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2021-12-16 01:33:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 466 states have (on average 1.3004291845493563) internal successors, (606), 481 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 606 transitions. [2021-12-16 01:33:44,533 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 606 transitions. Word has length 73 [2021-12-16 01:33:44,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:44,534 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 606 transitions. [2021-12-16 01:33:44,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:44,535 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 606 transitions. [2021-12-16 01:33:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-16 01:33:44,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:44,539 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:44,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 01:33:44,541 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:44,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:44,541 INFO L85 PathProgramCache]: Analyzing trace with hash 222449731, now seen corresponding path program 1 times [2021-12-16 01:33:44,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:44,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585869949] [2021-12-16 01:33:44,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:44,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:44,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:44,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:44,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585869949] [2021-12-16 01:33:44,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585869949] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:44,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:44,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:44,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37039369] [2021-12-16 01:33:44,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:44,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:44,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:44,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:44,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:44,669 INFO L87 Difference]: Start difference. First operand 482 states and 606 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:44,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:44,929 INFO L93 Difference]: Finished difference Result 820 states and 1061 transitions. [2021-12-16 01:33:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:44,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-12-16 01:33:44,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:44,932 INFO L225 Difference]: With dead ends: 820 [2021-12-16 01:33:44,932 INFO L226 Difference]: Without dead ends: 429 [2021-12-16 01:33:44,933 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:44,934 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1594 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:44,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1594 Valid, 320 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:33:44,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-12-16 01:33:44,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 429. [2021-12-16 01:33:44,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 413 states have (on average 1.3268765133171914) internal successors, (548), 428 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:44,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 548 transitions. [2021-12-16 01:33:44,953 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 548 transitions. Word has length 74 [2021-12-16 01:33:44,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:44,954 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 548 transitions. [2021-12-16 01:33:44,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 548 transitions. [2021-12-16 01:33:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-16 01:33:44,955 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:44,955 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:44,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 01:33:44,956 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash 452485952, now seen corresponding path program 1 times [2021-12-16 01:33:44,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:44,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269868759] [2021-12-16 01:33:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:44,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:45,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:45,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:45,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269868759] [2021-12-16 01:33:45,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269868759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:45,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:45,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:45,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610439409] [2021-12-16 01:33:45,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:45,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:45,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:45,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:45,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:45,041 INFO L87 Difference]: Start difference. First operand 429 states and 548 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:45,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:45,283 INFO L93 Difference]: Finished difference Result 767 states and 1002 transitions. [2021-12-16 01:33:45,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:45,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-12-16 01:33:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:45,287 INFO L225 Difference]: With dead ends: 767 [2021-12-16 01:33:45,287 INFO L226 Difference]: Without dead ends: 407 [2021-12-16 01:33:45,288 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:45,292 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 1489 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:45,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1489 Valid, 313 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:33:45,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-12-16 01:33:45,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2021-12-16 01:33:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 391 states have (on average 1.3375959079283888) internal successors, (523), 406 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:45,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 523 transitions. [2021-12-16 01:33:45,311 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 523 transitions. Word has length 75 [2021-12-16 01:33:45,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:45,312 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 523 transitions. [2021-12-16 01:33:45,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 523 transitions. [2021-12-16 01:33:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-12-16 01:33:45,314 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:45,314 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:45,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 01:33:45,316 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:45,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:45,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1831461910, now seen corresponding path program 1 times [2021-12-16 01:33:45,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:45,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712009618] [2021-12-16 01:33:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:45,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:45,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:45,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712009618] [2021-12-16 01:33:45,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712009618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:45,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:45,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 01:33:45,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839417468] [2021-12-16 01:33:45,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:45,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 01:33:45,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:45,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 01:33:45,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 01:33:45,440 INFO L87 Difference]: Start difference. First operand 407 states and 523 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:45,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:45,636 INFO L93 Difference]: Finished difference Result 745 states and 976 transitions. [2021-12-16 01:33:45,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 01:33:45,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-12-16 01:33:45,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:45,640 INFO L225 Difference]: With dead ends: 745 [2021-12-16 01:33:45,640 INFO L226 Difference]: Without dead ends: 393 [2021-12-16 01:33:45,641 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:45,642 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 1457 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:45,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1457 Valid, 303 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:33:45,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-12-16 01:33:45,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2021-12-16 01:33:45,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3448275862068966) internal successors, (507), 392 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:45,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 507 transitions. [2021-12-16 01:33:45,659 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 507 transitions. Word has length 76 [2021-12-16 01:33:45,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:45,659 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 507 transitions. [2021-12-16 01:33:45,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 507 transitions. [2021-12-16 01:33:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-16 01:33:45,665 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:45,665 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:45,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 01:33:45,666 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:45,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:45,666 INFO L85 PathProgramCache]: Analyzing trace with hash -142744767, now seen corresponding path program 1 times [2021-12-16 01:33:45,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:45,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868027448] [2021-12-16 01:33:45,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:45,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:45,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:45,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868027448] [2021-12-16 01:33:45,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868027448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:45,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:45,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:45,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074293145] [2021-12-16 01:33:45,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:45,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:45,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:45,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:45,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:45,845 INFO L87 Difference]: Start difference. First operand 393 states and 507 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:46,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:46,639 INFO L93 Difference]: Finished difference Result 718 states and 938 transitions. [2021-12-16 01:33:46,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:46,640 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-16 01:33:46,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:46,643 INFO L225 Difference]: With dead ends: 718 [2021-12-16 01:33:46,643 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:33:46,643 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:46,644 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 1779 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1779 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:46,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1779 Valid, 1381 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:46,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:33:46,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:33:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3421750663129974) internal successors, (506), 392 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:46,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 506 transitions. [2021-12-16 01:33:46,665 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 506 transitions. Word has length 77 [2021-12-16 01:33:46,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:46,666 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 506 transitions. [2021-12-16 01:33:46,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:46,667 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 506 transitions. [2021-12-16 01:33:46,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-16 01:33:46,668 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:46,668 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:46,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 01:33:46,668 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:46,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:46,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2022253705, now seen corresponding path program 1 times [2021-12-16 01:33:46,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:46,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441348605] [2021-12-16 01:33:46,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:46,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:46,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:46,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441348605] [2021-12-16 01:33:46,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441348605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:46,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:46,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:46,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819889049] [2021-12-16 01:33:46,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:46,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:46,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:46,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:46,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:46,824 INFO L87 Difference]: Start difference. First operand 393 states and 506 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:47,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:47,653 INFO L93 Difference]: Finished difference Result 870 states and 1161 transitions. [2021-12-16 01:33:47,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:47,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-16 01:33:47,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:47,656 INFO L225 Difference]: With dead ends: 870 [2021-12-16 01:33:47,656 INFO L226 Difference]: Without dead ends: 741 [2021-12-16 01:33:47,657 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:47,657 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 3277 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3277 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:47,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3277 Valid, 1347 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:47,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2021-12-16 01:33:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 393. [2021-12-16 01:33:47,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.339522546419098) internal successors, (505), 392 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:47,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 505 transitions. [2021-12-16 01:33:47,680 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 505 transitions. Word has length 77 [2021-12-16 01:33:47,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:47,681 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 505 transitions. [2021-12-16 01:33:47,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:47,681 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 505 transitions. [2021-12-16 01:33:47,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-16 01:33:47,682 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:47,682 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:47,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 01:33:47,683 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:47,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:47,683 INFO L85 PathProgramCache]: Analyzing trace with hash 679839246, now seen corresponding path program 1 times [2021-12-16 01:33:47,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:47,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35817520] [2021-12-16 01:33:47,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:47,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:47,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:47,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35817520] [2021-12-16 01:33:47,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35817520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:47,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:47,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 01:33:47,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732715745] [2021-12-16 01:33:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:47,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 01:33:47,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 01:33:47,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-16 01:33:47,789 INFO L87 Difference]: Start difference. First operand 393 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:48,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:48,280 INFO L93 Difference]: Finished difference Result 760 states and 963 transitions. [2021-12-16 01:33:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 01:33:48,281 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-12-16 01:33:48,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:48,283 INFO L225 Difference]: With dead ends: 760 [2021-12-16 01:33:48,283 INFO L226 Difference]: Without dead ends: 547 [2021-12-16 01:33:48,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-16 01:33:48,284 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 2314 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:48,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2314 Valid, 686 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 01:33:48,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2021-12-16 01:33:48,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 393. [2021-12-16 01:33:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.336870026525199) internal successors, (504), 392 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 504 transitions. [2021-12-16 01:33:48,307 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 504 transitions. Word has length 77 [2021-12-16 01:33:48,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:48,307 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 504 transitions. [2021-12-16 01:33:48,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:48,308 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 504 transitions. [2021-12-16 01:33:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:48,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:48,309 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:48,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 01:33:48,309 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:48,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash -204100811, now seen corresponding path program 1 times [2021-12-16 01:33:48,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:48,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193257639] [2021-12-16 01:33:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:48,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:48,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:48,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193257639] [2021-12-16 01:33:48,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193257639] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:48,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:48,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:48,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329277056] [2021-12-16 01:33:48,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:48,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:48,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:48,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:48,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:48,415 INFO L87 Difference]: Start difference. First operand 393 states and 504 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:49,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:49,187 INFO L93 Difference]: Finished difference Result 783 states and 1030 transitions. [2021-12-16 01:33:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:49,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:49,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:49,191 INFO L225 Difference]: With dead ends: 783 [2021-12-16 01:33:49,191 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:33:49,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:49,192 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 2181 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:49,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2181 Valid, 1383 Invalid, 1188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:33:49,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:33:49,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3342175066312998) internal successors, (503), 392 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 503 transitions. [2021-12-16 01:33:49,217 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 503 transitions. Word has length 79 [2021-12-16 01:33:49,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:49,217 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 503 transitions. [2021-12-16 01:33:49,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:49,218 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 503 transitions. [2021-12-16 01:33:49,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:49,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:49,219 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:49,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 01:33:49,220 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:49,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:49,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1708096291, now seen corresponding path program 1 times [2021-12-16 01:33:49,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:49,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128103240] [2021-12-16 01:33:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:49,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:49,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:49,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128103240] [2021-12-16 01:33:49,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128103240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:49,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:49,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:33:49,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420668578] [2021-12-16 01:33:49,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:49,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:33:49,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:49,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:33:49,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:33:49,425 INFO L87 Difference]: Start difference. First operand 393 states and 503 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:51,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:51,353 INFO L93 Difference]: Finished difference Result 1366 states and 1871 transitions. [2021-12-16 01:33:51,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-16 01:33:51,354 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:51,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:51,358 INFO L225 Difference]: With dead ends: 1366 [2021-12-16 01:33:51,358 INFO L226 Difference]: Without dead ends: 1267 [2021-12-16 01:33:51,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-16 01:33:51,360 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 6140 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6140 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:51,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6140 Valid, 2414 Invalid, 2342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 01:33:51,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2021-12-16 01:33:51,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 397. [2021-12-16 01:33:51,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.330708661417323) internal successors, (507), 396 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 507 transitions. [2021-12-16 01:33:51,403 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 507 transitions. Word has length 79 [2021-12-16 01:33:51,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:51,403 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 507 transitions. [2021-12-16 01:33:51,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 507 transitions. [2021-12-16 01:33:51,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:51,404 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:51,405 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:51,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 01:33:51,405 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:51,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:51,406 INFO L85 PathProgramCache]: Analyzing trace with hash -612946039, now seen corresponding path program 1 times [2021-12-16 01:33:51,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:51,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267825494] [2021-12-16 01:33:51,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:51,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:51,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:51,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:51,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267825494] [2021-12-16 01:33:51,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267825494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:51,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:51,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:51,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916592988] [2021-12-16 01:33:51,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:51,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:51,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:51,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:51,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:51,565 INFO L87 Difference]: Start difference. First operand 397 states and 507 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:52,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:52,486 INFO L93 Difference]: Finished difference Result 810 states and 1070 transitions. [2021-12-16 01:33:52,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:52,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:52,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:52,489 INFO L225 Difference]: With dead ends: 810 [2021-12-16 01:33:52,489 INFO L226 Difference]: Without dead ends: 733 [2021-12-16 01:33:52,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:52,490 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1995 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:52,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1995 Valid, 1871 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 01:33:52,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-12-16 01:33:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 397. [2021-12-16 01:33:52,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3280839895013123) internal successors, (506), 396 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:52,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 506 transitions. [2021-12-16 01:33:52,520 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 506 transitions. Word has length 79 [2021-12-16 01:33:52,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:52,521 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 506 transitions. [2021-12-16 01:33:52,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:52,521 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 506 transitions. [2021-12-16 01:33:52,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:52,522 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:52,522 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:52,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 01:33:52,523 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:52,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash 391973260, now seen corresponding path program 1 times [2021-12-16 01:33:52,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:52,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660383166] [2021-12-16 01:33:52,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:52,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:52,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:52,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660383166] [2021-12-16 01:33:52,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660383166] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:52,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:52,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:52,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71089568] [2021-12-16 01:33:52,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:52,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:52,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:52,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:52,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:52,637 INFO L87 Difference]: Start difference. First operand 397 states and 506 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:53,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:53,408 INFO L93 Difference]: Finished difference Result 806 states and 1065 transitions. [2021-12-16 01:33:53,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:53,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:53,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:53,415 INFO L225 Difference]: With dead ends: 806 [2021-12-16 01:33:53,416 INFO L226 Difference]: Without dead ends: 733 [2021-12-16 01:33:53,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:53,417 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 2506 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2506 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:53,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2506 Valid, 1409 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:53,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-12-16 01:33:53,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 397. [2021-12-16 01:33:53,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3254593175853018) internal successors, (505), 396 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:53,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 505 transitions. [2021-12-16 01:33:53,446 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 505 transitions. Word has length 79 [2021-12-16 01:33:53,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:53,446 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 505 transitions. [2021-12-16 01:33:53,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:53,447 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 505 transitions. [2021-12-16 01:33:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:53,448 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:53,448 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:53,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 01:33:53,448 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:53,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:53,449 INFO L85 PathProgramCache]: Analyzing trace with hash -757085498, now seen corresponding path program 1 times [2021-12-16 01:33:53,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:53,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617006691] [2021-12-16 01:33:53,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:53,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:53,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:53,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617006691] [2021-12-16 01:33:53,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617006691] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:53,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:53,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:53,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691451827] [2021-12-16 01:33:53,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:53,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:53,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:53,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:53,548 INFO L87 Difference]: Start difference. First operand 397 states and 505 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:54,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:54,349 INFO L93 Difference]: Finished difference Result 784 states and 1028 transitions. [2021-12-16 01:33:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:54,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:54,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:54,352 INFO L225 Difference]: With dead ends: 784 [2021-12-16 01:33:54,352 INFO L226 Difference]: Without dead ends: 717 [2021-12-16 01:33:54,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:54,353 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1471 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:54,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 1443 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:54,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2021-12-16 01:33:54,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 397. [2021-12-16 01:33:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3228346456692914) internal successors, (504), 396 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 504 transitions. [2021-12-16 01:33:54,382 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 504 transitions. Word has length 79 [2021-12-16 01:33:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:54,382 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 504 transitions. [2021-12-16 01:33:54,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:54,383 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 504 transitions. [2021-12-16 01:33:54,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:54,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:54,384 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:54,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 01:33:54,384 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:54,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:54,385 INFO L85 PathProgramCache]: Analyzing trace with hash 917200450, now seen corresponding path program 1 times [2021-12-16 01:33:54,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:54,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358975844] [2021-12-16 01:33:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:54,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:54,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:54,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:54,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358975844] [2021-12-16 01:33:54,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358975844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:54,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:54,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:54,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716910774] [2021-12-16 01:33:54,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:54,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:54,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:54,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:54,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:54,491 INFO L87 Difference]: Start difference. First operand 397 states and 504 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:55,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:55,306 INFO L93 Difference]: Finished difference Result 827 states and 1095 transitions. [2021-12-16 01:33:55,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:55,307 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:55,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:55,312 INFO L225 Difference]: With dead ends: 827 [2021-12-16 01:33:55,312 INFO L226 Difference]: Without dead ends: 737 [2021-12-16 01:33:55,313 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:55,313 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 2973 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:55,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2973 Valid, 1504 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:55,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-16 01:33:55,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 397. [2021-12-16 01:33:55,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3202099737532809) internal successors, (503), 396 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:55,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 503 transitions. [2021-12-16 01:33:55,348 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 503 transitions. Word has length 79 [2021-12-16 01:33:55,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:55,349 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 503 transitions. [2021-12-16 01:33:55,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:55,349 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 503 transitions. [2021-12-16 01:33:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:55,350 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:55,350 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:55,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 01:33:55,351 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:55,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:55,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1786631023, now seen corresponding path program 1 times [2021-12-16 01:33:55,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:55,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006564890] [2021-12-16 01:33:55,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:55,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:55,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:55,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006564890] [2021-12-16 01:33:55,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006564890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:55,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:55,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:55,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253964532] [2021-12-16 01:33:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:55,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:55,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:55,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:55,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:55,468 INFO L87 Difference]: Start difference. First operand 397 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:56,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:56,211 INFO L93 Difference]: Finished difference Result 889 states and 1171 transitions. [2021-12-16 01:33:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:56,212 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:56,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:56,214 INFO L225 Difference]: With dead ends: 889 [2021-12-16 01:33:56,214 INFO L226 Difference]: Without dead ends: 745 [2021-12-16 01:33:56,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:56,215 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 2398 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:56,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2398 Valid, 1852 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:56,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-12-16 01:33:56,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 397. [2021-12-16 01:33:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3175853018372703) internal successors, (502), 396 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:56,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 502 transitions. [2021-12-16 01:33:56,247 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 502 transitions. Word has length 79 [2021-12-16 01:33:56,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:56,247 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 502 transitions. [2021-12-16 01:33:56,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:56,248 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 502 transitions. [2021-12-16 01:33:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:56,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:56,249 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:56,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 01:33:56,249 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:56,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1207195179, now seen corresponding path program 1 times [2021-12-16 01:33:56,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:56,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014543393] [2021-12-16 01:33:56,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:56,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:56,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:56,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014543393] [2021-12-16 01:33:56,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014543393] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:56,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:56,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:56,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881401950] [2021-12-16 01:33:56,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:56,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:56,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:56,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:56,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:56,362 INFO L87 Difference]: Start difference. First operand 397 states and 502 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:57,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:57,141 INFO L93 Difference]: Finished difference Result 810 states and 1063 transitions. [2021-12-16 01:33:57,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:57,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:57,145 INFO L225 Difference]: With dead ends: 810 [2021-12-16 01:33:57,145 INFO L226 Difference]: Without dead ends: 733 [2021-12-16 01:33:57,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:57,147 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 1942 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:57,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1942 Valid, 1941 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:57,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2021-12-16 01:33:57,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 397. [2021-12-16 01:33:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.31496062992126) internal successors, (501), 396 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 501 transitions. [2021-12-16 01:33:57,187 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 501 transitions. Word has length 79 [2021-12-16 01:33:57,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:57,188 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 501 transitions. [2021-12-16 01:33:57,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:57,188 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 501 transitions. [2021-12-16 01:33:57,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-16 01:33:57,189 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:57,189 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:57,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 01:33:57,190 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:57,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:57,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1616040407, now seen corresponding path program 1 times [2021-12-16 01:33:57,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:57,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506143781] [2021-12-16 01:33:57,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:57,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:57,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:57,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:57,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506143781] [2021-12-16 01:33:57,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506143781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:57,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:57,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:57,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741464326] [2021-12-16 01:33:57,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:57,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:57,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:57,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:57,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:57,297 INFO L87 Difference]: Start difference. First operand 397 states and 501 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:58,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:58,079 INFO L93 Difference]: Finished difference Result 836 states and 1101 transitions. [2021-12-16 01:33:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:58,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-12-16 01:33:58,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:58,082 INFO L225 Difference]: With dead ends: 836 [2021-12-16 01:33:58,082 INFO L226 Difference]: Without dead ends: 737 [2021-12-16 01:33:58,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:58,083 INFO L933 BasicCegarLoop]: 433 mSDtfsCounter, 1890 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:58,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1890 Valid, 2018 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:58,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-16 01:33:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 397. [2021-12-16 01:33:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 381 states have (on average 1.3123359580052494) internal successors, (500), 396 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 500 transitions. [2021-12-16 01:33:58,117 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 500 transitions. Word has length 79 [2021-12-16 01:33:58,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:58,118 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 500 transitions. [2021-12-16 01:33:58,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 500 transitions. [2021-12-16 01:33:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-16 01:33:58,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:58,119 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:58,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 01:33:58,120 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:58,120 INFO L85 PathProgramCache]: Analyzing trace with hash -63232213, now seen corresponding path program 1 times [2021-12-16 01:33:58,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:58,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794032809] [2021-12-16 01:33:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:58,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:58,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:58,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:58,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794032809] [2021-12-16 01:33:58,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794032809] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:58,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:58,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:58,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107331139] [2021-12-16 01:33:58,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:58,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:58,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:58,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:58,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:58,216 INFO L87 Difference]: Start difference. First operand 397 states and 500 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:58,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:58,942 INFO L93 Difference]: Finished difference Result 836 states and 1101 transitions. [2021-12-16 01:33:58,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:58,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-12-16 01:33:58,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:58,945 INFO L225 Difference]: With dead ends: 836 [2021-12-16 01:33:58,945 INFO L226 Difference]: Without dead ends: 737 [2021-12-16 01:33:58,946 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:33:58,946 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 2044 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:58,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2044 Valid, 1918 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:33:58,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-16 01:33:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 393. [2021-12-16 01:33:58,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.312997347480106) internal successors, (495), 392 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:58,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 495 transitions. [2021-12-16 01:33:58,975 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 495 transitions. Word has length 80 [2021-12-16 01:33:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:58,976 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 495 transitions. [2021-12-16 01:33:58,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 495 transitions. [2021-12-16 01:33:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:58,977 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:58,977 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:58,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 01:33:58,978 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:58,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:58,978 INFO L85 PathProgramCache]: Analyzing trace with hash -247238646, now seen corresponding path program 1 times [2021-12-16 01:33:58,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:58,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786856283] [2021-12-16 01:33:58,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:58,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:33:59,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:33:59,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:33:59,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786856283] [2021-12-16 01:33:59,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786856283] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:33:59,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:33:59,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:33:59,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014495256] [2021-12-16 01:33:59,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:33:59,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:33:59,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:33:59,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:33:59,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:33:59,078 INFO L87 Difference]: Start difference. First operand 393 states and 495 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:33:59,897 INFO L93 Difference]: Finished difference Result 811 states and 1061 transitions. [2021-12-16 01:33:59,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:33:59,898 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:33:59,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:33:59,900 INFO L225 Difference]: With dead ends: 811 [2021-12-16 01:33:59,900 INFO L226 Difference]: Without dead ends: 729 [2021-12-16 01:33:59,901 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:33:59,901 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 1764 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:33:59,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1764 Valid, 2263 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:33:59,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-12-16 01:33:59,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 393. [2021-12-16 01:33:59,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3103448275862069) internal successors, (494), 392 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:59,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 494 transitions. [2021-12-16 01:33:59,944 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 494 transitions. Word has length 81 [2021-12-16 01:33:59,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:33:59,944 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 494 transitions. [2021-12-16 01:33:59,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:33:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 494 transitions. [2021-12-16 01:33:59,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:33:59,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:33:59,946 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:33:59,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 01:33:59,946 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:33:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:33:59,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1648828412, now seen corresponding path program 1 times [2021-12-16 01:33:59,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:33:59,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985885863] [2021-12-16 01:33:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:33:59,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:33:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:00,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:00,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985885863] [2021-12-16 01:34:00,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985885863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:00,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:00,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:00,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215261177] [2021-12-16 01:34:00,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:00,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:00,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:00,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:00,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:00,071 INFO L87 Difference]: Start difference. First operand 393 states and 494 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:00,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:00,900 INFO L93 Difference]: Finished difference Result 780 states and 1017 transitions. [2021-12-16 01:34:00,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:00,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:00,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:00,902 INFO L225 Difference]: With dead ends: 780 [2021-12-16 01:34:00,903 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:34:00,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:34:00,904 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 2240 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:00,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2240 Valid, 2099 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:34:00,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:34:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:34:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3076923076923077) internal successors, (493), 392 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:00,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 493 transitions. [2021-12-16 01:34:00,942 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 493 transitions. Word has length 81 [2021-12-16 01:34:00,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:00,943 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 493 transitions. [2021-12-16 01:34:00,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 493 transitions. [2021-12-16 01:34:00,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:00,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:00,944 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:00,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 01:34:00,945 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:00,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:00,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1380394973, now seen corresponding path program 1 times [2021-12-16 01:34:00,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:00,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793941631] [2021-12-16 01:34:00,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:00,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:01,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:01,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793941631] [2021-12-16 01:34:01,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793941631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:01,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:01,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:01,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312551412] [2021-12-16 01:34:01,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:01,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:01,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:01,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:01,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:01,036 INFO L87 Difference]: Start difference. First operand 393 states and 493 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:01,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:01,733 INFO L93 Difference]: Finished difference Result 783 states and 1019 transitions. [2021-12-16 01:34:01,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:01,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:01,735 INFO L225 Difference]: With dead ends: 783 [2021-12-16 01:34:01,735 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:34:01,736 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:01,736 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1933 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:01,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1933 Valid, 1665 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:34:01,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:34:01,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:34:01,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3050397877984086) internal successors, (492), 392 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 492 transitions. [2021-12-16 01:34:01,766 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 492 transitions. Word has length 81 [2021-12-16 01:34:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:01,767 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 492 transitions. [2021-12-16 01:34:01,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 492 transitions. [2021-12-16 01:34:01,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:01,768 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:01,768 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:01,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-16 01:34:01,768 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:01,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:01,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1584216041, now seen corresponding path program 1 times [2021-12-16 01:34:01,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:01,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585391981] [2021-12-16 01:34:01,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:01,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:01,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:01,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:01,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585391981] [2021-12-16 01:34:01,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585391981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:01,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:01,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:01,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409919719] [2021-12-16 01:34:01,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:01,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:01,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:01,873 INFO L87 Difference]: Start difference. First operand 393 states and 492 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:02,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:02,662 INFO L93 Difference]: Finished difference Result 806 states and 1051 transitions. [2021-12-16 01:34:02,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:02,662 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:02,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:02,664 INFO L225 Difference]: With dead ends: 806 [2021-12-16 01:34:02,664 INFO L226 Difference]: Without dead ends: 729 [2021-12-16 01:34:02,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:34:02,665 INFO L933 BasicCegarLoop]: 464 mSDtfsCounter, 1758 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:02,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1758 Valid, 2042 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:34:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-12-16 01:34:02,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 393. [2021-12-16 01:34:02,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3023872679045092) internal successors, (491), 392 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:02,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 491 transitions. [2021-12-16 01:34:02,706 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 491 transitions. Word has length 81 [2021-12-16 01:34:02,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:02,706 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 491 transitions. [2021-12-16 01:34:02,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:02,707 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 491 transitions. [2021-12-16 01:34:02,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:02,708 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:02,708 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:02,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-16 01:34:02,708 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:02,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:02,709 INFO L85 PathProgramCache]: Analyzing trace with hash 558624169, now seen corresponding path program 1 times [2021-12-16 01:34:02,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:02,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855409172] [2021-12-16 01:34:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:02,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:02,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:02,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855409172] [2021-12-16 01:34:02,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855409172] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:02,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:02,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:02,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232199855] [2021-12-16 01:34:02,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:02,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:02,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:02,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:02,802 INFO L87 Difference]: Start difference. First operand 393 states and 491 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:03,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:03,575 INFO L93 Difference]: Finished difference Result 780 states and 1013 transitions. [2021-12-16 01:34:03,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:03,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:03,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:03,577 INFO L225 Difference]: With dead ends: 780 [2021-12-16 01:34:03,578 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:34:03,578 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:03,579 INFO L933 BasicCegarLoop]: 427 mSDtfsCounter, 1313 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:03,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1313 Valid, 1693 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:34:03,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:34:03,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:34:03,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.29973474801061) internal successors, (490), 392 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 490 transitions. [2021-12-16 01:34:03,613 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 490 transitions. Word has length 81 [2021-12-16 01:34:03,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:03,613 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 490 transitions. [2021-12-16 01:34:03,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 490 transitions. [2021-12-16 01:34:03,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:03,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:03,614 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:03,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-16 01:34:03,615 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:03,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:03,615 INFO L85 PathProgramCache]: Analyzing trace with hash -237124242, now seen corresponding path program 1 times [2021-12-16 01:34:03,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:03,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451526328] [2021-12-16 01:34:03,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:03,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:03,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:03,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451526328] [2021-12-16 01:34:03,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451526328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:03,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:03,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:03,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887246359] [2021-12-16 01:34:03,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:03,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:03,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:03,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:03,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:03,735 INFO L87 Difference]: Start difference. First operand 393 states and 490 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:04,526 INFO L93 Difference]: Finished difference Result 778 states and 1009 transitions. [2021-12-16 01:34:04,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:04,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:04,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:04,528 INFO L225 Difference]: With dead ends: 778 [2021-12-16 01:34:04,528 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:34:04,529 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:04,529 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 2284 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:04,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2284 Valid, 1961 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:34:04,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:34:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:34:04,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.297082228116711) internal successors, (489), 392 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:04,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 489 transitions. [2021-12-16 01:34:04,567 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 489 transitions. Word has length 81 [2021-12-16 01:34:04,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:04,568 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 489 transitions. [2021-12-16 01:34:04,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:04,568 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 489 transitions. [2021-12-16 01:34:04,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:04,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:04,569 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:04,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-16 01:34:04,569 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:04,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:04,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1610096682, now seen corresponding path program 1 times [2021-12-16 01:34:04,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:04,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151067591] [2021-12-16 01:34:04,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:04,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:04,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:04,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151067591] [2021-12-16 01:34:04,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151067591] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:04,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:04,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:04,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704858521] [2021-12-16 01:34:04,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:04,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:04,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:04,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:04,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:04,668 INFO L87 Difference]: Start difference. First operand 393 states and 489 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:05,340 INFO L93 Difference]: Finished difference Result 811 states and 1053 transitions. [2021-12-16 01:34:05,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:05,340 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:05,342 INFO L225 Difference]: With dead ends: 811 [2021-12-16 01:34:05,342 INFO L226 Difference]: Without dead ends: 729 [2021-12-16 01:34:05,343 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:05,344 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 2954 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:05,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2954 Valid, 1608 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:34:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-12-16 01:34:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 393. [2021-12-16 01:34:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2944297082228118) internal successors, (488), 392 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 488 transitions. [2021-12-16 01:34:05,380 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 488 transitions. Word has length 81 [2021-12-16 01:34:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:05,380 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 488 transitions. [2021-12-16 01:34:05,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 488 transitions. [2021-12-16 01:34:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:05,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:05,382 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:05,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-16 01:34:05,382 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:05,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:05,382 INFO L85 PathProgramCache]: Analyzing trace with hash -302100420, now seen corresponding path program 1 times [2021-12-16 01:34:05,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:05,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852753211] [2021-12-16 01:34:05,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:05,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:05,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:05,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852753211] [2021-12-16 01:34:05,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852753211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:05,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:05,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:05,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760703187] [2021-12-16 01:34:05,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:05,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:05,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:05,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:05,479 INFO L87 Difference]: Start difference. First operand 393 states and 488 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:06,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:06,297 INFO L93 Difference]: Finished difference Result 783 states and 1012 transitions. [2021-12-16 01:34:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:06,298 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:06,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:06,299 INFO L225 Difference]: With dead ends: 783 [2021-12-16 01:34:06,300 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:34:06,300 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:06,300 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 2259 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:06,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2259 Valid, 2013 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:34:06,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:34:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:34:06,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2917771883289124) internal successors, (487), 392 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 487 transitions. [2021-12-16 01:34:06,346 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 487 transitions. Word has length 81 [2021-12-16 01:34:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:06,346 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 487 transitions. [2021-12-16 01:34:06,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:06,346 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 487 transitions. [2021-12-16 01:34:06,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:06,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:06,347 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:06,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-16 01:34:06,348 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:06,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:06,348 INFO L85 PathProgramCache]: Analyzing trace with hash -286808248, now seen corresponding path program 1 times [2021-12-16 01:34:06,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:06,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544239053] [2021-12-16 01:34:06,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:06,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:06,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:06,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544239053] [2021-12-16 01:34:06,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544239053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:06,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:06,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:06,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724467152] [2021-12-16 01:34:06,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:06,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:06,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:06,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:06,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:06,447 INFO L87 Difference]: Start difference. First operand 393 states and 487 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:07,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:07,330 INFO L93 Difference]: Finished difference Result 842 states and 1093 transitions. [2021-12-16 01:34:07,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:07,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:07,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:07,332 INFO L225 Difference]: With dead ends: 842 [2021-12-16 01:34:07,332 INFO L226 Difference]: Without dead ends: 737 [2021-12-16 01:34:07,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:34:07,333 INFO L933 BasicCegarLoop]: 511 mSDtfsCounter, 1744 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:07,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1744 Valid, 2414 Invalid, 1655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 01:34:07,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-12-16 01:34:07,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 393. [2021-12-16 01:34:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2891246684350133) internal successors, (486), 392 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 486 transitions. [2021-12-16 01:34:07,374 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 486 transitions. Word has length 81 [2021-12-16 01:34:07,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:07,374 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 486 transitions. [2021-12-16 01:34:07,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 486 transitions. [2021-12-16 01:34:07,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:07,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:07,375 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:07,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-16 01:34:07,376 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:07,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:07,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1055423202, now seen corresponding path program 1 times [2021-12-16 01:34:07,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:07,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793305073] [2021-12-16 01:34:07,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:07,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:07,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:07,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793305073] [2021-12-16 01:34:07,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793305073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:07,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:07,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:07,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661980850] [2021-12-16 01:34:07,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:07,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:07,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:07,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:07,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:07,474 INFO L87 Difference]: Start difference. First operand 393 states and 486 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:08,301 INFO L93 Difference]: Finished difference Result 718 states and 914 transitions. [2021-12-16 01:34:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:08,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:08,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:08,303 INFO L225 Difference]: With dead ends: 718 [2021-12-16 01:34:08,303 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:34:08,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:34:08,304 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 2249 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 2014 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:08,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2249 Valid, 2014 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:34:08,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:34:08,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:34:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2864721485411141) internal successors, (485), 392 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 485 transitions. [2021-12-16 01:34:08,336 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 485 transitions. Word has length 81 [2021-12-16 01:34:08,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:08,337 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 485 transitions. [2021-12-16 01:34:08,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:08,337 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 485 transitions. [2021-12-16 01:34:08,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:08,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:08,338 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:08,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-16 01:34:08,338 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:08,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:08,339 INFO L85 PathProgramCache]: Analyzing trace with hash 856773900, now seen corresponding path program 1 times [2021-12-16 01:34:08,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:08,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019765545] [2021-12-16 01:34:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:08,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:08,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:08,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019765545] [2021-12-16 01:34:08,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019765545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:08,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:08,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:08,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991733008] [2021-12-16 01:34:08,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:08,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:08,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:08,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:08,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:08,433 INFO L87 Difference]: Start difference. First operand 393 states and 485 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:09,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:09,187 INFO L93 Difference]: Finished difference Result 746 states and 952 transitions. [2021-12-16 01:34:09,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:09,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:09,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:09,190 INFO L225 Difference]: With dead ends: 746 [2021-12-16 01:34:09,190 INFO L226 Difference]: Without dead ends: 729 [2021-12-16 01:34:09,190 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:09,191 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 2294 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:09,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2294 Valid, 1994 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 01:34:09,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-12-16 01:34:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 393. [2021-12-16 01:34:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2838196286472148) internal successors, (484), 392 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 484 transitions. [2021-12-16 01:34:09,227 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 484 transitions. Word has length 81 [2021-12-16 01:34:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:09,228 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 484 transitions. [2021-12-16 01:34:09,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:09,228 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 484 transitions. [2021-12-16 01:34:09,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:09,229 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:09,229 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:09,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-16 01:34:09,229 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:09,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:09,230 INFO L85 PathProgramCache]: Analyzing trace with hash -544552721, now seen corresponding path program 1 times [2021-12-16 01:34:09,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:09,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48280050] [2021-12-16 01:34:09,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:09,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:09,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:09,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48280050] [2021-12-16 01:34:09,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48280050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:09,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:09,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:09,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102471505] [2021-12-16 01:34:09,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:09,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:09,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:09,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:09,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:09,350 INFO L87 Difference]: Start difference. First operand 393 states and 484 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:10,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:10,195 INFO L93 Difference]: Finished difference Result 780 states and 1005 transitions. [2021-12-16 01:34:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:10,197 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:10,199 INFO L225 Difference]: With dead ends: 780 [2021-12-16 01:34:10,199 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:34:10,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-16 01:34:10,200 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 2142 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:10,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2142 Valid, 2235 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:34:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:34:10,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:34:10,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2811671087533156) internal successors, (483), 392 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 483 transitions. [2021-12-16 01:34:10,235 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 483 transitions. Word has length 81 [2021-12-16 01:34:10,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:10,235 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 483 transitions. [2021-12-16 01:34:10,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:10,235 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 483 transitions. [2021-12-16 01:34:10,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-16 01:34:10,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:10,236 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:10,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-16 01:34:10,236 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:10,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:10,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1810559777, now seen corresponding path program 1 times [2021-12-16 01:34:10,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:10,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143391947] [2021-12-16 01:34:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:10,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:10,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:10,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:10,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143391947] [2021-12-16 01:34:10,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143391947] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:10,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:10,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:10,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164573910] [2021-12-16 01:34:10,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:10,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:10,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:10,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:10,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:10,340 INFO L87 Difference]: Start difference. First operand 393 states and 483 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:11,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:11,138 INFO L93 Difference]: Finished difference Result 718 states and 911 transitions. [2021-12-16 01:34:11,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:11,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-12-16 01:34:11,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:11,141 INFO L225 Difference]: With dead ends: 718 [2021-12-16 01:34:11,141 INFO L226 Difference]: Without dead ends: 713 [2021-12-16 01:34:11,141 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:11,142 INFO L933 BasicCegarLoop]: 491 mSDtfsCounter, 1895 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:11,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1895 Valid, 1953 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 01:34:11,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-12-16 01:34:11,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 393. [2021-12-16 01:34:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2785145888594165) internal successors, (482), 392 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:11,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 482 transitions. [2021-12-16 01:34:11,183 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 482 transitions. Word has length 81 [2021-12-16 01:34:11,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:11,183 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 482 transitions. [2021-12-16 01:34:11,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 482 transitions. [2021-12-16 01:34:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:34:11,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:11,184 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:11,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-16 01:34:11,184 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:11,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:11,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1687929497, now seen corresponding path program 1 times [2021-12-16 01:34:11,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:11,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634406344] [2021-12-16 01:34:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:11,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:11,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:11,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634406344] [2021-12-16 01:34:11,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634406344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:11,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:11,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 01:34:11,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316238111] [2021-12-16 01:34:11,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:11,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 01:34:11,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:11,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 01:34:11,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-16 01:34:11,513 INFO L87 Difference]: Start difference. First operand 393 states and 482 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:12,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:12,753 INFO L93 Difference]: Finished difference Result 925 states and 1133 transitions. [2021-12-16 01:34:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-16 01:34:12,755 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-12-16 01:34:12,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:12,758 INFO L225 Difference]: With dead ends: 925 [2021-12-16 01:34:12,758 INFO L226 Difference]: Without dead ends: 856 [2021-12-16 01:34:12,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-16 01:34:12,759 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 2482 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 4375 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:12,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2482 Valid, 4375 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 01:34:12,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2021-12-16 01:34:12,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 389. [2021-12-16 01:34:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 374 states have (on average 1.2754010695187166) internal successors, (477), 388 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 477 transitions. [2021-12-16 01:34:12,806 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 477 transitions. Word has length 83 [2021-12-16 01:34:12,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:12,806 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 477 transitions. [2021-12-16 01:34:12,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:12,806 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 477 transitions. [2021-12-16 01:34:12,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:34:12,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:12,807 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:12,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-16 01:34:12,807 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:12,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:12,808 INFO L85 PathProgramCache]: Analyzing trace with hash -92587651, now seen corresponding path program 1 times [2021-12-16 01:34:12,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:12,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758580690] [2021-12-16 01:34:12,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:12,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:13,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:13,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758580690] [2021-12-16 01:34:13,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758580690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:13,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:13,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 01:34:13,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011549305] [2021-12-16 01:34:13,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:13,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 01:34:13,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 01:34:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-16 01:34:13,034 INFO L87 Difference]: Start difference. First operand 389 states and 477 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:13,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:13,618 INFO L93 Difference]: Finished difference Result 902 states and 1128 transitions. [2021-12-16 01:34:13,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 01:34:13,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-12-16 01:34:13,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:13,620 INFO L225 Difference]: With dead ends: 902 [2021-12-16 01:34:13,620 INFO L226 Difference]: Without dead ends: 723 [2021-12-16 01:34:13,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-12-16 01:34:13,621 INFO L933 BasicCegarLoop]: 550 mSDtfsCounter, 2627 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:13,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2627 Valid, 1638 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:34:13,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-12-16 01:34:13,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 275. [2021-12-16 01:34:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 264 states have (on average 1.2651515151515151) internal successors, (334), 274 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 334 transitions. [2021-12-16 01:34:13,653 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 334 transitions. Word has length 83 [2021-12-16 01:34:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:13,654 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 334 transitions. [2021-12-16 01:34:13,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 334 transitions. [2021-12-16 01:34:13,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:34:13,654 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:13,654 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:13,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-16 01:34:13,655 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:13,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:13,655 INFO L85 PathProgramCache]: Analyzing trace with hash -119228615, now seen corresponding path program 1 times [2021-12-16 01:34:13,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:13,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365980272] [2021-12-16 01:34:13,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:13,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:13,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:13,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365980272] [2021-12-16 01:34:13,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365980272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:13,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:13,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 01:34:13,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935191980] [2021-12-16 01:34:13,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:13,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 01:34:13,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 01:34:13,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-16 01:34:13,939 INFO L87 Difference]: Start difference. First operand 275 states and 334 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:14,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:14,857 INFO L93 Difference]: Finished difference Result 694 states and 869 transitions. [2021-12-16 01:34:14,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-16 01:34:14,858 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-12-16 01:34:14,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:14,860 INFO L225 Difference]: With dead ends: 694 [2021-12-16 01:34:14,860 INFO L226 Difference]: Without dead ends: 625 [2021-12-16 01:34:14,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-16 01:34:14,861 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 1952 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1952 SdHoareTripleChecker+Valid, 2735 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:14,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1952 Valid, 2735 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 01:34:14,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-12-16 01:34:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 271. [2021-12-16 01:34:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 261 states have (on average 1.260536398467433) internal successors, (329), 270 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 329 transitions. [2021-12-16 01:34:14,906 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 329 transitions. Word has length 83 [2021-12-16 01:34:14,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:14,906 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 329 transitions. [2021-12-16 01:34:14,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:14,907 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 329 transitions. [2021-12-16 01:34:14,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:34:14,907 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:14,908 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:14,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-16 01:34:14,908 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:14,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:14,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1366575231, now seen corresponding path program 1 times [2021-12-16 01:34:14,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:14,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703077773] [2021-12-16 01:34:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:14,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:15,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:15,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703077773] [2021-12-16 01:34:15,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703077773] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:15,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:15,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 01:34:15,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752188963] [2021-12-16 01:34:15,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:15,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 01:34:15,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 01:34:15,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-16 01:34:15,191 INFO L87 Difference]: Start difference. First operand 271 states and 329 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:16,226 INFO L93 Difference]: Finished difference Result 1066 states and 1421 transitions. [2021-12-16 01:34:16,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-16 01:34:16,226 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-12-16 01:34:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:16,229 INFO L225 Difference]: With dead ends: 1066 [2021-12-16 01:34:16,229 INFO L226 Difference]: Without dead ends: 1000 [2021-12-16 01:34:16,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-12-16 01:34:16,229 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 2961 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2961 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:16,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2961 Valid, 3669 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 01:34:16,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2021-12-16 01:34:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 270. [2021-12-16 01:34:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 260 states have (on average 1.2576923076923077) internal successors, (327), 269 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:16,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 327 transitions. [2021-12-16 01:34:16,270 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 327 transitions. Word has length 83 [2021-12-16 01:34:16,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:16,270 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 327 transitions. [2021-12-16 01:34:16,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:16,271 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 327 transitions. [2021-12-16 01:34:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:34:16,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:16,271 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:16,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-16 01:34:16,272 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:16,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:16,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1899745763, now seen corresponding path program 1 times [2021-12-16 01:34:16,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:16,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197363186] [2021-12-16 01:34:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:16,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:17,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:17,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:17,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197363186] [2021-12-16 01:34:17,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197363186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:17,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:17,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-12-16 01:34:17,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294207465] [2021-12-16 01:34:17,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:17,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-16 01:34:17,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:17,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-16 01:34:17,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2021-12-16 01:34:17,091 INFO L87 Difference]: Start difference. First operand 270 states and 327 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:21,754 INFO L93 Difference]: Finished difference Result 1239 states and 1591 transitions. [2021-12-16 01:34:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-16 01:34:21,754 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-12-16 01:34:21,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:21,757 INFO L225 Difference]: With dead ends: 1239 [2021-12-16 01:34:21,757 INFO L226 Difference]: Without dead ends: 1168 [2021-12-16 01:34:21,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=454, Invalid=2408, Unknown=0, NotChecked=0, Total=2862 [2021-12-16 01:34:21,758 INFO L933 BasicCegarLoop]: 961 mSDtfsCounter, 3131 mSDsluCounter, 13438 mSDsCounter, 0 mSdLazyCounter, 7280 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3131 SdHoareTripleChecker+Valid, 14399 SdHoareTripleChecker+Invalid, 7388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 7280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:21,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3131 Valid, 14399 Invalid, 7388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 7280 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-16 01:34:21,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2021-12-16 01:34:21,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 288. [2021-12-16 01:34:21,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 278 states have (on average 1.2589928057553956) internal successors, (350), 287 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 350 transitions. [2021-12-16 01:34:21,802 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 350 transitions. Word has length 83 [2021-12-16 01:34:21,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:21,802 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 350 transitions. [2021-12-16 01:34:21,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:21,803 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 350 transitions. [2021-12-16 01:34:21,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:34:21,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:21,803 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:21,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-16 01:34:21,803 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:21,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:21,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2051820758, now seen corresponding path program 1 times [2021-12-16 01:34:21,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:21,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566530523] [2021-12-16 01:34:21,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:21,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:22,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:22,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:22,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566530523] [2021-12-16 01:34:22,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566530523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:22,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:22,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 01:34:22,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352316231] [2021-12-16 01:34:22,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:22,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 01:34:22,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:22,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 01:34:22,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-16 01:34:22,093 INFO L87 Difference]: Start difference. First operand 288 states and 350 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:23,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:23,008 INFO L93 Difference]: Finished difference Result 700 states and 878 transitions. [2021-12-16 01:34:23,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:23,008 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-12-16 01:34:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:23,021 INFO L225 Difference]: With dead ends: 700 [2021-12-16 01:34:23,025 INFO L226 Difference]: Without dead ends: 631 [2021-12-16 01:34:23,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-12-16 01:34:23,026 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 1918 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:23,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1918 Valid, 2405 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 01:34:23,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-12-16 01:34:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 284. [2021-12-16 01:34:23,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 275 states have (on average 1.2545454545454546) internal successors, (345), 283 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 345 transitions. [2021-12-16 01:34:23,074 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 345 transitions. Word has length 83 [2021-12-16 01:34:23,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:23,075 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 345 transitions. [2021-12-16 01:34:23,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 345 transitions. [2021-12-16 01:34:23,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-16 01:34:23,075 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:23,076 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:23,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-16 01:34:23,076 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:23,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1787055611, now seen corresponding path program 1 times [2021-12-16 01:34:23,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:23,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332877456] [2021-12-16 01:34:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:23,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:23,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:23,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332877456] [2021-12-16 01:34:23,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332877456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:23,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:23,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 01:34:23,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441991701] [2021-12-16 01:34:23,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:23,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:34:23,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:34:23,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:34:23,320 INFO L87 Difference]: Start difference. First operand 284 states and 345 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:23,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:23,964 INFO L93 Difference]: Finished difference Result 745 states and 958 transitions. [2021-12-16 01:34:23,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 01:34:23,964 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2021-12-16 01:34:23,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:23,965 INFO L225 Difference]: With dead ends: 745 [2021-12-16 01:34:23,966 INFO L226 Difference]: Without dead ends: 617 [2021-12-16 01:34:23,966 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:23,967 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 1335 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 3466 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:23,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 3466 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:34:23,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2021-12-16 01:34:24,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 221. [2021-12-16 01:34:24,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 216 states have (on average 1.25) internal successors, (270), 220 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 270 transitions. [2021-12-16 01:34:24,007 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 270 transitions. Word has length 83 [2021-12-16 01:34:24,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:24,007 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 270 transitions. [2021-12-16 01:34:24,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 270 transitions. [2021-12-16 01:34:24,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:34:24,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:24,008 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:24,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-16 01:34:24,008 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:24,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1619983761, now seen corresponding path program 1 times [2021-12-16 01:34:24,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:24,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317562915] [2021-12-16 01:34:24,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:24,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:24,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:24,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317562915] [2021-12-16 01:34:24,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317562915] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:24,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:24,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 01:34:24,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812602778] [2021-12-16 01:34:24,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:24,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 01:34:24,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:24,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 01:34:24,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-16 01:34:24,263 INFO L87 Difference]: Start difference. First operand 221 states and 270 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:24,953 INFO L93 Difference]: Finished difference Result 570 states and 750 transitions. [2021-12-16 01:34:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 01:34:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-12-16 01:34:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:24,954 INFO L225 Difference]: With dead ends: 570 [2021-12-16 01:34:24,955 INFO L226 Difference]: Without dead ends: 492 [2021-12-16 01:34:24,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-12-16 01:34:24,955 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1021 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:24,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 2803 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:34:24,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-12-16 01:34:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 193. [2021-12-16 01:34:25,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 189 states have (on average 1.2433862433862435) internal successors, (235), 192 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 235 transitions. [2021-12-16 01:34:25,003 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 235 transitions. Word has length 84 [2021-12-16 01:34:25,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:25,003 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 235 transitions. [2021-12-16 01:34:25,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:25,003 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 235 transitions. [2021-12-16 01:34:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:34:25,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:25,004 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:25,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-16 01:34:25,004 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:25,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:25,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1314391107, now seen corresponding path program 1 times [2021-12-16 01:34:25,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:25,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2979363] [2021-12-16 01:34:25,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:25,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:25,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:25,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2979363] [2021-12-16 01:34:25,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2979363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:25,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:25,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 01:34:25,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883079140] [2021-12-16 01:34:25,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:25,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 01:34:25,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 01:34:25,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-16 01:34:25,156 INFO L87 Difference]: Start difference. First operand 193 states and 235 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:26,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:26,049 INFO L93 Difference]: Finished difference Result 475 states and 620 transitions. [2021-12-16 01:34:26,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-16 01:34:26,049 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-12-16 01:34:26,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:26,050 INFO L225 Difference]: With dead ends: 475 [2021-12-16 01:34:26,050 INFO L226 Difference]: Without dead ends: 468 [2021-12-16 01:34:26,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2021-12-16 01:34:26,051 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 2447 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2447 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:26,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2447 Valid, 824 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 01:34:26,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2021-12-16 01:34:26,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 197. [2021-12-16 01:34:26,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.238341968911917) internal successors, (239), 196 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:26,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 239 transitions. [2021-12-16 01:34:26,090 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 239 transitions. Word has length 84 [2021-12-16 01:34:26,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:26,090 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 239 transitions. [2021-12-16 01:34:26,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:26,090 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 239 transitions. [2021-12-16 01:34:26,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:34:26,090 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:26,091 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:26,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-16 01:34:26,091 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:26,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:26,091 INFO L85 PathProgramCache]: Analyzing trace with hash -102555148, now seen corresponding path program 1 times [2021-12-16 01:34:26,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:26,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566814987] [2021-12-16 01:34:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:26,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:26,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:26,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:26,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566814987] [2021-12-16 01:34:26,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566814987] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:26,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:26,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:26,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345322090] [2021-12-16 01:34:26,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:26,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:26,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:26,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:26,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:26,189 INFO L87 Difference]: Start difference. First operand 197 states and 239 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:26,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:26,598 INFO L93 Difference]: Finished difference Result 300 states and 373 transitions. [2021-12-16 01:34:26,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 01:34:26,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-12-16 01:34:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:26,599 INFO L225 Difference]: With dead ends: 300 [2021-12-16 01:34:26,600 INFO L226 Difference]: Without dead ends: 293 [2021-12-16 01:34:26,600 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:26,600 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 1041 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:26,600 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 751 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:34:26,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-12-16 01:34:26,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 197. [2021-12-16 01:34:26,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.233160621761658) internal successors, (238), 196 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:26,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 238 transitions. [2021-12-16 01:34:26,640 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 238 transitions. Word has length 84 [2021-12-16 01:34:26,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:26,640 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 238 transitions. [2021-12-16 01:34:26,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:26,640 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 238 transitions. [2021-12-16 01:34:26,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-16 01:34:26,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:26,641 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:26,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-16 01:34:26,641 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:26,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:26,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1707932206, now seen corresponding path program 1 times [2021-12-16 01:34:26,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:26,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453218487] [2021-12-16 01:34:26,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:26,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:26,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:26,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453218487] [2021-12-16 01:34:26,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453218487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:26,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:26,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:26,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502169220] [2021-12-16 01:34:26,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:26,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:26,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:26,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:26,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:26,722 INFO L87 Difference]: Start difference. First operand 197 states and 238 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:27,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:27,108 INFO L93 Difference]: Finished difference Result 384 states and 492 transitions. [2021-12-16 01:34:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 01:34:27,109 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-12-16 01:34:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:27,109 INFO L225 Difference]: With dead ends: 384 [2021-12-16 01:34:27,109 INFO L226 Difference]: Without dead ends: 301 [2021-12-16 01:34:27,110 INFO L932 BasicCegarLoop]: 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 [2021-12-16 01:34:27,110 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 832 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:27,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 739 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 01:34:27,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-12-16 01:34:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 197. [2021-12-16 01:34:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.2279792746113989) internal successors, (237), 196 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:27,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 237 transitions. [2021-12-16 01:34:27,149 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 237 transitions. Word has length 84 [2021-12-16 01:34:27,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:27,149 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 237 transitions. [2021-12-16 01:34:27,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 237 transitions. [2021-12-16 01:34:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-16 01:34:27,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:27,149 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:27,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-16 01:34:27,150 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:27,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:27,150 INFO L85 PathProgramCache]: Analyzing trace with hash -271355459, now seen corresponding path program 1 times [2021-12-16 01:34:27,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:27,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766589406] [2021-12-16 01:34:27,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:27,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:27,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:27,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:27,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766589406] [2021-12-16 01:34:27,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766589406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:27,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:27,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-16 01:34:27,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153999416] [2021-12-16 01:34:27,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:27,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 01:34:27,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 01:34:27,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-16 01:34:27,249 INFO L87 Difference]: Start difference. First operand 197 states and 237 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:27,717 INFO L93 Difference]: Finished difference Result 300 states and 371 transitions. [2021-12-16 01:34:27,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 01:34:27,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-12-16 01:34:27,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:27,718 INFO L225 Difference]: With dead ends: 300 [2021-12-16 01:34:27,718 INFO L226 Difference]: Without dead ends: 293 [2021-12-16 01:34:27,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-12-16 01:34:27,719 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 702 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:27,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [702 Valid, 861 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 01:34:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-12-16 01:34:27,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 193. [2021-12-16 01:34:27,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 189 states have (on average 1.2275132275132274) internal successors, (232), 192 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 232 transitions. [2021-12-16 01:34:27,759 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 232 transitions. Word has length 85 [2021-12-16 01:34:27,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:27,759 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 232 transitions. [2021-12-16 01:34:27,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:27,759 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 232 transitions. [2021-12-16 01:34:27,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-16 01:34:27,760 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:27,760 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:27,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-16 01:34:27,760 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:27,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:27,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1825531379, now seen corresponding path program 1 times [2021-12-16 01:34:27,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:27,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147316190] [2021-12-16 01:34:27,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:27,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:28,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:28,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147316190] [2021-12-16 01:34:28,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147316190] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:28,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:28,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-12-16 01:34:28,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332909896] [2021-12-16 01:34:28,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:28,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-16 01:34:28,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:28,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-16 01:34:28,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2021-12-16 01:34:28,462 INFO L87 Difference]: Start difference. First operand 193 states and 232 transitions. Second operand has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 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) [2021-12-16 01:34:31,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 01:34:31,732 INFO L93 Difference]: Finished difference Result 780 states and 990 transitions. [2021-12-16 01:34:31,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-16 01:34:31,733 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 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 [2021-12-16 01:34:31,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 01:34:31,734 INFO L225 Difference]: With dead ends: 780 [2021-12-16 01:34:31,734 INFO L226 Difference]: Without dead ends: 772 [2021-12-16 01:34:31,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=380, Invalid=1876, Unknown=0, NotChecked=0, Total=2256 [2021-12-16 01:34:31,735 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 2087 mSDsluCounter, 8336 mSDsCounter, 0 mSdLazyCounter, 4419 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 9023 SdHoareTripleChecker+Invalid, 4499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-16 01:34:31,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2087 Valid, 9023 Invalid, 4499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4419 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-16 01:34:31,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2021-12-16 01:34:31,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 212. [2021-12-16 01:34:31,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 208 states have (on average 1.2259615384615385) internal successors, (255), 211 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 01:34:31,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 255 transitions. [2021-12-16 01:34:31,785 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 255 transitions. Word has length 86 [2021-12-16 01:34:31,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 01:34:31,785 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 255 transitions. [2021-12-16 01:34:31,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 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) [2021-12-16 01:34:31,785 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 255 transitions. [2021-12-16 01:34:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-16 01:34:31,786 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 01:34:31,786 INFO L514 BasicCegarLoop]: 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] [2021-12-16 01:34:31,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-16 01:34:31,786 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-12-16 01:34:31,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 01:34:31,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1644810532, now seen corresponding path program 1 times [2021-12-16 01:34:31,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 01:34:31,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44684212] [2021-12-16 01:34:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 01:34:31,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 01:34:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 01:34:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 01:34:32,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 01:34:32,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44684212] [2021-12-16 01:34:32,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44684212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 01:34:32,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 01:34:32,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-12-16 01:34:32,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735070158] [2021-12-16 01:34:32,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 01:34:32,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-16 01:34:32,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 01:34:32,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-16 01:34:32,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2021-12-16 01:34:32,516 INFO L87 Difference]: Start difference. First operand 212 states and 255 transitions. Second operand has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 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)