./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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.8.1.ufo.BOUNDED-16.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 9fc434c98d81d50ebbaaf1f0c0ad7b0d03fbdae2db606436a34b66c07c286ced --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:38:37,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:38:37,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:38:37,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:38:37,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:38:37,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:38:37,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:38:37,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:38:37,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:38:37,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:38:37,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:38:37,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:38:37,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:38:37,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:38:37,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:38:37,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:38:37,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:38:37,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:38:37,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:38:37,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:38:37,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:38:37,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:38:37,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:38:37,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:38:37,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:38:37,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:38:37,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:38:37,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:38:37,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:38:37,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:38:37,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:38:37,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:38:37,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:38:37,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:38:37,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:38:37,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:38:37,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:38:37,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:38:37,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:38:37,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:38:37,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:38:37,635 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:38:37,651 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:38:37,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:38:37,652 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:38:37,652 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:38:37,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:38:37,653 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:38:37,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:38:37,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:38:37,654 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:38:37,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:38:37,654 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:38:37,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:38:37,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:38:37,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:38:37,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:38:37,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:38:37,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:38:37,655 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:38:37,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:38:37,656 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:38:37,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:38:37,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:38:37,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:38:37,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:38:37,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:38:37,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:38:37,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:38:37,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:38:37,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:38:37,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:38:37,671 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:38:37,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:38:37,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:38:37,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:38:37,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc434c98d81d50ebbaaf1f0c0ad7b0d03fbdae2db606436a34b66c07c286ced [2021-12-15 11:38:37,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:38:37,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:38:37,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:38:37,904 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:38:37,905 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:38:37,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c [2021-12-15 11:38:37,966 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e442c697/b62106a2e5df4f68a3d172e16ed5db15/FLAG4255572be [2021-12-15 11:38:38,598 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:38:38,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c [2021-12-15 11:38:38,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e442c697/b62106a2e5df4f68a3d172e16ed5db15/FLAG4255572be [2021-12-15 11:38:38,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e442c697/b62106a2e5df4f68a3d172e16ed5db15 [2021-12-15 11:38:39,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:38:39,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:38:39,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:38:39,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:38:39,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:38:39,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:38:38" (1/1) ... [2021-12-15 11:38:39,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66eaecc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:39, skipping insertion in model container [2021-12-15 11:38:39,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:38:38" (1/1) ... [2021-12-15 11:38:39,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:38:39,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:38:39,830 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[22358,22371] [2021-12-15 11:38:39,850 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[28268,28281] [2021-12-15 11:38:39,856 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[29690,29703] [2021-12-15 11:38:39,861 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[30548,30561] [2021-12-15 11:38:39,868 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[32341,32354] [2021-12-15 11:38:39,872 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[33199,33212] [2021-12-15 11:38:39,877 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[34428,34441] [2021-12-15 11:38:39,888 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[37283,37296] [2021-12-15 11:38:39,892 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[38144,38157] [2021-12-15 11:38:39,898 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[39376,39389] [2021-12-15 11:38:39,907 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[41667,41680] [2021-12-15 11:38:39,923 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[46092,46105] [2021-12-15 11:38:39,927 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[46953,46966] [2021-12-15 11:38:39,932 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[48185,48198] [2021-12-15 11:38:39,940 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[50476,50489] [2021-12-15 11:38:39,954 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[54337,54350] [2021-12-15 11:38:39,978 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[61299,61312] [2021-12-15 11:38:39,982 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[62160,62173] [2021-12-15 11:38:39,987 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[63392,63405] [2021-12-15 11:38:39,995 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[65683,65696] [2021-12-15 11:38:40,006 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[69544,69557] [2021-12-15 11:38:40,026 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[75942,75955] [2021-12-15 11:38:40,055 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[87347,87360] [2021-12-15 11:38:40,072 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[88208,88221] [2021-12-15 11:38:40,077 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[89401,89414] [2021-12-15 11:38:40,097 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[91653,91666] [2021-12-15 11:38:40,117 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[95755,95768] [2021-12-15 11:38:40,150 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[103009,103022] [2021-12-15 11:38:40,188 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[115656,115669] [2021-12-15 11:38:40,255 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[137951,137964] [2021-12-15 11:38:40,259 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[138812,138825] [2021-12-15 11:38:40,265 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[140044,140057] [2021-12-15 11:38:40,272 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[142335,142348] [2021-12-15 11:38:40,284 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[146196,146209] [2021-12-15 11:38:40,301 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[152594,152607] [2021-12-15 11:38:40,328 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[163435,163448] [2021-12-15 11:38:40,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[182075,182088] [2021-12-15 11:38:41,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:38:41,370 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:38:41,485 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[22358,22371] [2021-12-15 11:38:41,520 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[28268,28281] [2021-12-15 11:38:41,534 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[29690,29703] [2021-12-15 11:38:41,545 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[30548,30561] [2021-12-15 11:38:41,554 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[32341,32354] [2021-12-15 11:38:41,557 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[33199,33212] [2021-12-15 11:38:41,561 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[34428,34441] [2021-12-15 11:38:41,569 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[37283,37296] [2021-12-15 11:38:41,572 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[38144,38157] [2021-12-15 11:38:41,576 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[39376,39389] [2021-12-15 11:38:41,582 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[41667,41680] [2021-12-15 11:38:41,593 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[46092,46105] [2021-12-15 11:38:41,596 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[46953,46966] [2021-12-15 11:38:41,600 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[48185,48198] [2021-12-15 11:38:41,606 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[50476,50489] [2021-12-15 11:38:41,615 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[54337,54350] [2021-12-15 11:38:41,630 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[61299,61312] [2021-12-15 11:38:41,633 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[62160,62173] [2021-12-15 11:38:41,637 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[63392,63405] [2021-12-15 11:38:41,643 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[65683,65696] [2021-12-15 11:38:41,652 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[69544,69557] [2021-12-15 11:38:41,666 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[75942,75955] [2021-12-15 11:38:41,687 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[87347,87360] [2021-12-15 11:38:41,690 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[88208,88221] [2021-12-15 11:38:41,695 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[89401,89414] [2021-12-15 11:38:41,701 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[91653,91666] [2021-12-15 11:38:41,711 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[95755,95768] [2021-12-15 11:38:41,728 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[103009,103022] [2021-12-15 11:38:41,755 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[115656,115669] [2021-12-15 11:38:41,801 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[137951,137964] [2021-12-15 11:38:41,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[138812,138825] [2021-12-15 11:38:41,809 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[140044,140057] [2021-12-15 11:38:41,816 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[142335,142348] [2021-12-15 11:38:41,825 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[146196,146209] [2021-12-15 11:38:41,840 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[152594,152607] [2021-12-15 11:38:41,863 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[163435,163448] [2021-12-15 11:38:41,898 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.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c[182075,182088] [2021-12-15 11:38:42,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:38:42,672 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:38:42,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42 WrapperNode [2021-12-15 11:38:42,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:38:42,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:38:42,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:38:42,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:38:42,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:42,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:42,992 INFO L137 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24256 [2021-12-15 11:38:42,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:38:42,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:38:42,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:38:42,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:38:43,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:43,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:43,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:43,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:43,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:43,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:43,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:43,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:38:43,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:38:43,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:38:43,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:38:43,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (1/1) ... [2021-12-15 11:38:43,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:38:43,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:38:43,367 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) [2021-12-15 11:38:43,372 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 [2021-12-15 11:38:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:38:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:38:43,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:38:43,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:38:43,848 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:38:43,850 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:38:49,705 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:38:49,731 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:38:49,731 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:38:49,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:38:49 BoogieIcfgContainer [2021-12-15 11:38:49,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:38:49,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:38:49,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:38:49,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:38:49,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:38:38" (1/3) ... [2021-12-15 11:38:49,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d98e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:38:49, skipping insertion in model container [2021-12-15 11:38:49,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:38:42" (2/3) ... [2021-12-15 11:38:49,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d98e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:38:49, skipping insertion in model container [2021-12-15 11:38:49,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:38:49" (3/3) ... [2021-12-15 11:38:49,741 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c.v+lhb-reducer.c [2021-12-15 11:38:49,744 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:38:49,744 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2021-12-15 11:38:49,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:38:49,806 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 [2021-12-15 11:38:49,807 INFO L340 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2021-12-15 11:38:49,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 3893 states, 3855 states have (on average 1.8658884565499352) internal successors, (7193), 3892 states have internal predecessors, (7193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:49,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-15 11:38:49,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:49,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:49,891 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:38:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:49,895 INFO L85 PathProgramCache]: Analyzing trace with hash 665140337, now seen corresponding path program 1 times [2021-12-15 11:38:49,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:49,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33365881] [2021-12-15 11:38:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:49,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:50,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:50,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:50,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33365881] [2021-12-15 11:38:50,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33365881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:50,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:50,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:50,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470365145] [2021-12-15 11:38:50,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:50,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:50,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:50,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:50,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:50,394 INFO L87 Difference]: Start difference. First operand has 3893 states, 3855 states have (on average 1.8658884565499352) internal successors, (7193), 3892 states have internal predecessors, (7193), 0 states have call successors, (0), 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 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:51,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:51,854 INFO L93 Difference]: Finished difference Result 5682 states and 10172 transitions. [2021-12-15 11:38:51,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:51,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-12-15 11:38:51,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:51,873 INFO L225 Difference]: With dead ends: 5682 [2021-12-15 11:38:51,874 INFO L226 Difference]: Without dead ends: 2890 [2021-12-15 11:38:51,882 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 [2021-12-15 11:38:51,884 INFO L933 BasicCegarLoop]: 3413 mSDtfsCounter, 15280 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15280 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:51,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15280 Valid, 3475 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 11:38:51,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-12-15 11:38:51,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 2890. [2021-12-15 11:38:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2853 states have (on average 1.3301787592008412) internal successors, (3795), 2889 states have internal predecessors, (3795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 3795 transitions. [2021-12-15 11:38:51,984 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 3795 transitions. Word has length 117 [2021-12-15 11:38:51,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:51,984 INFO L470 AbstractCegarLoop]: Abstraction has 2890 states and 3795 transitions. [2021-12-15 11:38:51,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:51,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 3795 transitions. [2021-12-15 11:38:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-15 11:38:51,991 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:51,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:51,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:38:51,991 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:38:51,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:51,992 INFO L85 PathProgramCache]: Analyzing trace with hash -603692616, now seen corresponding path program 1 times [2021-12-15 11:38:51,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:51,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283130787] [2021-12-15 11:38:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:51,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:52,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:52,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:52,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283130787] [2021-12-15 11:38:52,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283130787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:52,105 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:52,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:52,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614448431] [2021-12-15 11:38:52,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:52,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:52,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:52,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:52,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:52,107 INFO L87 Difference]: Start difference. First operand 2890 states and 3795 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:53,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:53,376 INFO L93 Difference]: Finished difference Result 4670 states and 6353 transitions. [2021-12-15 11:38:53,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:53,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2021-12-15 11:38:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:53,384 INFO L225 Difference]: With dead ends: 4670 [2021-12-15 11:38:53,384 INFO L226 Difference]: Without dead ends: 2426 [2021-12-15 11:38:53,388 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 [2021-12-15 11:38:53,389 INFO L933 BasicCegarLoop]: 1760 mSDtfsCounter, 9574 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9574 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:53,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9574 Valid, 1804 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-15 11:38:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2021-12-15 11:38:53,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2426. [2021-12-15 11:38:53,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 2389 states have (on average 1.367099204688154) internal successors, (3266), 2425 states have internal predecessors, (3266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:53,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3266 transitions. [2021-12-15 11:38:53,446 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3266 transitions. Word has length 118 [2021-12-15 11:38:53,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:53,448 INFO L470 AbstractCegarLoop]: Abstraction has 2426 states and 3266 transitions. [2021-12-15 11:38:53,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:53,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3266 transitions. [2021-12-15 11:38:53,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-12-15 11:38:53,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:53,454 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:53,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 11:38:53,455 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:38:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:53,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1489003718, now seen corresponding path program 1 times [2021-12-15 11:38:53,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:53,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409513030] [2021-12-15 11:38:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:53,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:53,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:53,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:53,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409513030] [2021-12-15 11:38:53,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409513030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:53,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:53,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:53,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859678333] [2021-12-15 11:38:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:53,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:53,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:53,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:53,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:53,594 INFO L87 Difference]: Start difference. First operand 2426 states and 3266 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:54,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:54,556 INFO L93 Difference]: Finished difference Result 4206 states and 5823 transitions. [2021-12-15 11:38:54,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:54,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-12-15 11:38:54,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:54,563 INFO L225 Difference]: With dead ends: 4206 [2021-12-15 11:38:54,564 INFO L226 Difference]: Without dead ends: 2140 [2021-12-15 11:38:54,567 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 [2021-12-15 11:38:54,568 INFO L933 BasicCegarLoop]: 1648 mSDtfsCounter, 8748 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8748 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:54,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8748 Valid, 1660 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:38:54,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2021-12-15 11:38:54,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2021-12-15 11:38:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2103 states have (on average 1.4013314312886354) internal successors, (2947), 2139 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2947 transitions. [2021-12-15 11:38:54,624 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2947 transitions. Word has length 119 [2021-12-15 11:38:54,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:54,624 INFO L470 AbstractCegarLoop]: Abstraction has 2140 states and 2947 transitions. [2021-12-15 11:38:54,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2947 transitions. [2021-12-15 11:38:54,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-15 11:38:54,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:54,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:54,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 11:38:54,629 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:38:54,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:54,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1377889997, now seen corresponding path program 1 times [2021-12-15 11:38:54,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:54,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065494494] [2021-12-15 11:38:54,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:54,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:54,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:54,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065494494] [2021-12-15 11:38:54,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065494494] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:54,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:54,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:54,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911068954] [2021-12-15 11:38:54,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:54,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:54,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:54,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:54,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:54,763 INFO L87 Difference]: Start difference. First operand 2140 states and 2947 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:56,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:56,294 INFO L93 Difference]: Finished difference Result 4934 states and 6932 transitions. [2021-12-15 11:38:56,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:56,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-12-15 11:38:56,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:56,305 INFO L225 Difference]: With dead ends: 4934 [2021-12-15 11:38:56,305 INFO L226 Difference]: Without dead ends: 3008 [2021-12-15 11:38:56,308 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 [2021-12-15 11:38:56,310 INFO L933 BasicCegarLoop]: 1549 mSDtfsCounter, 11124 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11124 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:56,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11124 Valid, 2338 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-15 11:38:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-12-15 11:38:56,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2882. [2021-12-15 11:38:56,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2845 states have (on average 1.4456942003514939) internal successors, (4113), 2881 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 4113 transitions. [2021-12-15 11:38:56,403 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 4113 transitions. Word has length 120 [2021-12-15 11:38:56,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:56,404 INFO L470 AbstractCegarLoop]: Abstraction has 2882 states and 4113 transitions. [2021-12-15 11:38:56,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 4113 transitions. [2021-12-15 11:38:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-15 11:38:56,409 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:56,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:56,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 11:38:56,409 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:38:56,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:56,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1955834809, now seen corresponding path program 1 times [2021-12-15 11:38:56,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:56,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756338633] [2021-12-15 11:38:56,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:56,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:56,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:56,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:56,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756338633] [2021-12-15 11:38:56,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756338633] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:56,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:56,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:56,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798455898] [2021-12-15 11:38:56,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:56,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:56,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:56,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:56,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:56,538 INFO L87 Difference]: Start difference. First operand 2882 states and 4113 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:57,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:57,872 INFO L93 Difference]: Finished difference Result 5550 states and 7997 transitions. [2021-12-15 11:38:57,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:57,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2021-12-15 11:38:57,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:57,882 INFO L225 Difference]: With dead ends: 5550 [2021-12-15 11:38:57,882 INFO L226 Difference]: Without dead ends: 2842 [2021-12-15 11:38:57,887 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 [2021-12-15 11:38:57,889 INFO L933 BasicCegarLoop]: 1076 mSDtfsCounter, 7697 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7697 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:57,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7697 Valid, 1136 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-15 11:38:57,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2021-12-15 11:38:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2842. [2021-12-15 11:38:57,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2805 states have (on average 1.4484848484848485) internal successors, (4063), 2841 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:57,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 4063 transitions. [2021-12-15 11:38:57,980 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 4063 transitions. Word has length 121 [2021-12-15 11:38:57,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:57,980 INFO L470 AbstractCegarLoop]: Abstraction has 2842 states and 4063 transitions. [2021-12-15 11:38:57,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 4063 transitions. [2021-12-15 11:38:57,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-15 11:38:57,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:57,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:57,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 11:38:57,986 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:38:57,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:57,987 INFO L85 PathProgramCache]: Analyzing trace with hash 939334236, now seen corresponding path program 1 times [2021-12-15 11:38:57,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:57,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412356295] [2021-12-15 11:38:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:57,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:58,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:58,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:58,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412356295] [2021-12-15 11:38:58,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412356295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:58,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:58,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:58,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196271279] [2021-12-15 11:38:58,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:58,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:58,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:58,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:58,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:58,119 INFO L87 Difference]: Start difference. First operand 2842 states and 4063 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:59,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:38:59,258 INFO L93 Difference]: Finished difference Result 5510 states and 7945 transitions. [2021-12-15 11:38:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:38:59,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2021-12-15 11:38:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:38:59,267 INFO L225 Difference]: With dead ends: 5510 [2021-12-15 11:38:59,267 INFO L226 Difference]: Without dead ends: 2810 [2021-12-15 11:38:59,271 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 [2021-12-15 11:38:59,272 INFO L933 BasicCegarLoop]: 1289 mSDtfsCounter, 7764 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7764 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 1613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:38:59,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7764 Valid, 1341 Invalid, 1613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 11:38:59,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2021-12-15 11:38:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2810. [2021-12-15 11:38:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2773 states have (on average 1.4514965741074648) internal successors, (4025), 2809 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 4025 transitions. [2021-12-15 11:38:59,349 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 4025 transitions. Word has length 122 [2021-12-15 11:38:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:38:59,350 INFO L470 AbstractCegarLoop]: Abstraction has 2810 states and 4025 transitions. [2021-12-15 11:38:59,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:38:59,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 4025 transitions. [2021-12-15 11:38:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-15 11:38:59,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:38:59,355 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:38:59,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 11:38:59,355 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:38:59,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:38:59,356 INFO L85 PathProgramCache]: Analyzing trace with hash 792377080, now seen corresponding path program 1 times [2021-12-15 11:38:59,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:38:59,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515111700] [2021-12-15 11:38:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:38:59,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:38:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:38:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:38:59,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:38:59,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515111700] [2021-12-15 11:38:59,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515111700] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:38:59,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:38:59,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:38:59,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119154957] [2021-12-15 11:38:59,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:38:59,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:38:59,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:38:59,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:38:59,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:38:59,454 INFO L87 Difference]: Start difference. First operand 2810 states and 4025 transitions. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:00,415 INFO L93 Difference]: Finished difference Result 5478 states and 7905 transitions. [2021-12-15 11:39:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:39:00,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2021-12-15 11:39:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:00,423 INFO L225 Difference]: With dead ends: 5478 [2021-12-15 11:39:00,423 INFO L226 Difference]: Without dead ends: 2776 [2021-12-15 11:39:00,426 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 [2021-12-15 11:39:00,427 INFO L933 BasicCegarLoop]: 1458 mSDtfsCounter, 7875 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7875 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:00,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7875 Valid, 1478 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:39:00,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2021-12-15 11:39:00,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2776. [2021-12-15 11:39:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2776 states, 2739 states have (on average 1.4556407447973714) internal successors, (3987), 2775 states have internal predecessors, (3987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 3987 transitions. [2021-12-15 11:39:00,500 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 3987 transitions. Word has length 123 [2021-12-15 11:39:00,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:00,500 INFO L470 AbstractCegarLoop]: Abstraction has 2776 states and 3987 transitions. [2021-12-15 11:39:00,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 4 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:00,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 3987 transitions. [2021-12-15 11:39:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-15 11:39:00,505 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:00,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:00,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 11:39:00,505 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:00,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1117087425, now seen corresponding path program 1 times [2021-12-15 11:39:00,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:00,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682677206] [2021-12-15 11:39:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:00,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:00,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:00,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:00,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682677206] [2021-12-15 11:39:00,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682677206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:00,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:00,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:39:00,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377004977] [2021-12-15 11:39:00,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:00,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:39:00,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:00,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:39:00,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:39:00,587 INFO L87 Difference]: Start difference. First operand 2776 states and 3987 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:01,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:01,483 INFO L93 Difference]: Finished difference Result 5444 states and 7865 transitions. [2021-12-15 11:39:01,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:39:01,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2021-12-15 11:39:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:01,498 INFO L225 Difference]: With dead ends: 5444 [2021-12-15 11:39:01,498 INFO L226 Difference]: Without dead ends: 2762 [2021-12-15 11:39:01,501 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 [2021-12-15 11:39:01,502 INFO L933 BasicCegarLoop]: 1414 mSDtfsCounter, 7769 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7769 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:01,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7769 Valid, 1450 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:39:01,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2021-12-15 11:39:01,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2762. [2021-12-15 11:39:01,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.456880733944954) internal successors, (3970), 2761 states have internal predecessors, (3970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:01,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3970 transitions. [2021-12-15 11:39:01,577 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3970 transitions. Word has length 124 [2021-12-15 11:39:01,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:01,577 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3970 transitions. [2021-12-15 11:39:01,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:01,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3970 transitions. [2021-12-15 11:39:01,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 11:39:01,582 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:01,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:01,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 11:39:01,583 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:01,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:01,583 INFO L85 PathProgramCache]: Analyzing trace with hash 872951789, now seen corresponding path program 1 times [2021-12-15 11:39:01,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:01,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686684460] [2021-12-15 11:39:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:01,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:01,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:01,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686684460] [2021-12-15 11:39:01,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686684460] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:01,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:01,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:39:01,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824372471] [2021-12-15 11:39:01,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:01,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:39:01,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:39:01,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:39:01,753 INFO L87 Difference]: Start difference. First operand 2762 states and 3970 transitions. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:04,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:04,562 INFO L93 Difference]: Finished difference Result 5346 states and 7685 transitions. [2021-12-15 11:39:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 11:39:04,562 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-12-15 11:39:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:04,585 INFO L225 Difference]: With dead ends: 5346 [2021-12-15 11:39:04,585 INFO L226 Difference]: Without dead ends: 4670 [2021-12-15 11:39:04,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-15 11:39:04,588 INFO L933 BasicCegarLoop]: 1475 mSDtfsCounter, 8868 mSDsluCounter, 6109 mSDsCounter, 0 mSdLazyCounter, 6257 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8868 SdHoareTripleChecker+Valid, 7584 SdHoareTripleChecker+Invalid, 6287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:04,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8868 Valid, 7584 Invalid, 6287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 6257 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-15 11:39:04,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4670 states. [2021-12-15 11:39:04,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4670 to 2762. [2021-12-15 11:39:04,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4561467889908257) internal successors, (3968), 2761 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3968 transitions. [2021-12-15 11:39:04,715 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3968 transitions. Word has length 125 [2021-12-15 11:39:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:04,715 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3968 transitions. [2021-12-15 11:39:04,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3968 transitions. [2021-12-15 11:39:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 11:39:04,719 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:04,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:04,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 11:39:04,720 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:04,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1281515480, now seen corresponding path program 1 times [2021-12-15 11:39:04,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:04,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418997820] [2021-12-15 11:39:04,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:04,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:04,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:04,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418997820] [2021-12-15 11:39:04,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418997820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:04,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:04,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:39:04,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744524155] [2021-12-15 11:39:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:04,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:39:04,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:04,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:39:04,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:39:04,882 INFO L87 Difference]: Start difference. First operand 2762 states and 3968 transitions. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:07,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:07,648 INFO L93 Difference]: Finished difference Result 4800 states and 6888 transitions. [2021-12-15 11:39:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 11:39:07,649 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-12-15 11:39:07,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:07,658 INFO L225 Difference]: With dead ends: 4800 [2021-12-15 11:39:07,658 INFO L226 Difference]: Without dead ends: 4562 [2021-12-15 11:39:07,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-15 11:39:07,661 INFO L933 BasicCegarLoop]: 1502 mSDtfsCounter, 11372 mSDsluCounter, 6384 mSDsCounter, 0 mSdLazyCounter, 6607 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11372 SdHoareTripleChecker+Valid, 7886 SdHoareTripleChecker+Invalid, 6813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 6607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:07,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11372 Valid, 7886 Invalid, 6813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 6607 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-15 11:39:07,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4562 states. [2021-12-15 11:39:07,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4562 to 2762. [2021-12-15 11:39:07,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4554128440366974) internal successors, (3966), 2761 states have internal predecessors, (3966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:07,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3966 transitions. [2021-12-15 11:39:07,789 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3966 transitions. Word has length 125 [2021-12-15 11:39:07,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:07,789 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3966 transitions. [2021-12-15 11:39:07,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:07,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3966 transitions. [2021-12-15 11:39:07,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 11:39:07,793 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:07,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:07,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 11:39:07,794 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:07,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:07,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1133942878, now seen corresponding path program 1 times [2021-12-15 11:39:07,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:07,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153089167] [2021-12-15 11:39:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:07,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:07,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:07,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:07,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153089167] [2021-12-15 11:39:07,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153089167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:07,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:07,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:39:07,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702355297] [2021-12-15 11:39:07,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:07,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:39:07,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:07,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:39:07,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:39:07,951 INFO L87 Difference]: Start difference. First operand 2762 states and 3966 transitions. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:11,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:11,027 INFO L93 Difference]: Finished difference Result 4914 states and 7059 transitions. [2021-12-15 11:39:11,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 11:39:11,027 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-12-15 11:39:11,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:11,036 INFO L225 Difference]: With dead ends: 4914 [2021-12-15 11:39:11,036 INFO L226 Difference]: Without dead ends: 4610 [2021-12-15 11:39:11,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-15 11:39:11,038 INFO L933 BasicCegarLoop]: 1518 mSDtfsCounter, 12806 mSDsluCounter, 7913 mSDsCounter, 0 mSdLazyCounter, 7835 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12806 SdHoareTripleChecker+Valid, 9431 SdHoareTripleChecker+Invalid, 7955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 7835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:11,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12806 Valid, 9431 Invalid, 7955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 7835 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-15 11:39:11,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2021-12-15 11:39:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 2762. [2021-12-15 11:39:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4546788990825688) internal successors, (3964), 2761 states have internal predecessors, (3964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:11,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3964 transitions. [2021-12-15 11:39:11,152 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3964 transitions. Word has length 125 [2021-12-15 11:39:11,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:11,153 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3964 transitions. [2021-12-15 11:39:11,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:11,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3964 transitions. [2021-12-15 11:39:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 11:39:11,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:11,156 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:11,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 11:39:11,157 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:11,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:11,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1158693058, now seen corresponding path program 1 times [2021-12-15 11:39:11,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:11,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120062680] [2021-12-15 11:39:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:11,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:11,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:11,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120062680] [2021-12-15 11:39:11,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120062680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:11,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:11,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-15 11:39:11,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804842701] [2021-12-15 11:39:11,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:11,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 11:39:11,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:11,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 11:39:11,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-15 11:39:11,299 INFO L87 Difference]: Start difference. First operand 2762 states and 3964 transitions. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:14,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:14,300 INFO L93 Difference]: Finished difference Result 4898 states and 7038 transitions. [2021-12-15 11:39:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 11:39:14,301 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-12-15 11:39:14,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:14,308 INFO L225 Difference]: With dead ends: 4898 [2021-12-15 11:39:14,308 INFO L226 Difference]: Without dead ends: 4610 [2021-12-15 11:39:14,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-12-15 11:39:14,310 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 7213 mSDsluCounter, 7950 mSDsCounter, 0 mSdLazyCounter, 7837 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7213 SdHoareTripleChecker+Valid, 9472 SdHoareTripleChecker+Invalid, 7903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 7837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:14,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7213 Valid, 9472 Invalid, 7903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 7837 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-12-15 11:39:14,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2021-12-15 11:39:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 2762. [2021-12-15 11:39:14,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4539449541284404) internal successors, (3962), 2761 states have internal predecessors, (3962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:14,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3962 transitions. [2021-12-15 11:39:14,417 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3962 transitions. Word has length 125 [2021-12-15 11:39:14,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:14,417 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3962 transitions. [2021-12-15 11:39:14,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:14,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3962 transitions. [2021-12-15 11:39:14,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 11:39:14,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:14,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:14,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 11:39:14,421 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:14,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:14,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1551981936, now seen corresponding path program 1 times [2021-12-15 11:39:14,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:14,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799042847] [2021-12-15 11:39:14,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:14,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:14,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:14,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:14,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799042847] [2021-12-15 11:39:14,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799042847] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:14,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:14,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 11:39:14,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778894692] [2021-12-15 11:39:14,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:14,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 11:39:14,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:14,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 11:39:14,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-15 11:39:14,549 INFO L87 Difference]: Start difference. First operand 2762 states and 3962 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:16,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:16,549 INFO L93 Difference]: Finished difference Result 4587 states and 6329 transitions. [2021-12-15 11:39:16,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 11:39:16,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-12-15 11:39:16,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:16,556 INFO L225 Difference]: With dead ends: 4587 [2021-12-15 11:39:16,556 INFO L226 Difference]: Without dead ends: 3480 [2021-12-15 11:39:16,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-12-15 11:39:16,560 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 10724 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 3989 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10724 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 3989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:16,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10724 Valid, 3506 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 3989 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-15 11:39:16,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2021-12-15 11:39:16,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 2762. [2021-12-15 11:39:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.453577981651376) internal successors, (3961), 2761 states have internal predecessors, (3961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:16,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3961 transitions. [2021-12-15 11:39:16,720 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3961 transitions. Word has length 125 [2021-12-15 11:39:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:16,720 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3961 transitions. [2021-12-15 11:39:16,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 7 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:16,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3961 transitions. [2021-12-15 11:39:16,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 11:39:16,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:16,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:16,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 11:39:16,724 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:16,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2063190834, now seen corresponding path program 1 times [2021-12-15 11:39:16,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:16,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418322146] [2021-12-15 11:39:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:16,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:16,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:16,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418322146] [2021-12-15 11:39:16,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418322146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:16,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:16,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:39:16,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795255479] [2021-12-15 11:39:16,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:16,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:39:16,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:16,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:39:16,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:39:16,967 INFO L87 Difference]: Start difference. First operand 2762 states and 3961 transitions. Second operand has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:20,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:20,239 INFO L93 Difference]: Finished difference Result 4845 states and 6891 transitions. [2021-12-15 11:39:20,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-15 11:39:20,239 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-12-15 11:39:20,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:20,246 INFO L225 Difference]: With dead ends: 4845 [2021-12-15 11:39:20,246 INFO L226 Difference]: Without dead ends: 4643 [2021-12-15 11:39:20,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-15 11:39:20,249 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 12774 mSDsluCounter, 7280 mSDsCounter, 0 mSdLazyCounter, 7948 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12774 SdHoareTripleChecker+Valid, 8770 SdHoareTripleChecker+Invalid, 8348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 7948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:20,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12774 Valid, 8770 Invalid, 8348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 7948 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-12-15 11:39:20,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4643 states. [2021-12-15 11:39:20,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4643 to 2787. [2021-12-15 11:39:20,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2750 states have (on average 1.453818181818182) internal successors, (3998), 2786 states have internal predecessors, (3998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:20,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3998 transitions. [2021-12-15 11:39:20,426 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3998 transitions. Word has length 125 [2021-12-15 11:39:20,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:20,427 INFO L470 AbstractCegarLoop]: Abstraction has 2787 states and 3998 transitions. [2021-12-15 11:39:20,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.416666666666666) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:20,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3998 transitions. [2021-12-15 11:39:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 11:39:20,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:20,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:20,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 11:39:20,430 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2108954040, now seen corresponding path program 1 times [2021-12-15 11:39:20,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:20,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940626827] [2021-12-15 11:39:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:20,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:20,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:20,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:20,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940626827] [2021-12-15 11:39:20,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940626827] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:20,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:20,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:39:20,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765818926] [2021-12-15 11:39:20,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:20,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:39:20,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:20,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:39:20,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:39:20,582 INFO L87 Difference]: Start difference. First operand 2787 states and 3998 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:23,000 INFO L93 Difference]: Finished difference Result 3658 states and 5270 transitions. [2021-12-15 11:39:23,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:39:23,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-12-15 11:39:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:23,005 INFO L225 Difference]: With dead ends: 3658 [2021-12-15 11:39:23,005 INFO L226 Difference]: Without dead ends: 3055 [2021-12-15 11:39:23,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:39:23,007 INFO L933 BasicCegarLoop]: 1455 mSDtfsCounter, 8374 mSDsluCounter, 6100 mSDsCounter, 0 mSdLazyCounter, 6164 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8374 SdHoareTripleChecker+Valid, 7555 SdHoareTripleChecker+Invalid, 6191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:23,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8374 Valid, 7555 Invalid, 6191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 6164 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-15 11:39:23,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3055 states. [2021-12-15 11:39:23,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3055 to 2762. [2021-12-15 11:39:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.453211009174312) internal successors, (3960), 2761 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:23,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3960 transitions. [2021-12-15 11:39:23,138 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3960 transitions. Word has length 125 [2021-12-15 11:39:23,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:23,138 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3960 transitions. [2021-12-15 11:39:23,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:23,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3960 transitions. [2021-12-15 11:39:23,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-12-15 11:39:23,141 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:23,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:23,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 11:39:23,142 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:23,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:23,142 INFO L85 PathProgramCache]: Analyzing trace with hash 871478774, now seen corresponding path program 1 times [2021-12-15 11:39:23,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:23,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205297820] [2021-12-15 11:39:23,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:23,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:23,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:23,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205297820] [2021-12-15 11:39:23,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205297820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:23,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:23,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:39:23,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967786923] [2021-12-15 11:39:23,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:23,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:39:23,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:23,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:39:23,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:39:23,264 INFO L87 Difference]: Start difference. First operand 2762 states and 3960 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:25,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:25,833 INFO L93 Difference]: Finished difference Result 4785 states and 6854 transitions. [2021-12-15 11:39:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:39:25,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2021-12-15 11:39:25,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:25,839 INFO L225 Difference]: With dead ends: 4785 [2021-12-15 11:39:25,839 INFO L226 Difference]: Without dead ends: 4570 [2021-12-15 11:39:25,857 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 [2021-12-15 11:39:25,860 INFO L933 BasicCegarLoop]: 1578 mSDtfsCounter, 14544 mSDsluCounter, 5258 mSDsCounter, 0 mSdLazyCounter, 5783 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14544 SdHoareTripleChecker+Valid, 6836 SdHoareTripleChecker+Invalid, 6035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 5783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:25,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14544 Valid, 6836 Invalid, 6035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 5783 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 11:39:25,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2021-12-15 11:39:25,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 2762. [2021-12-15 11:39:26,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4528440366972477) internal successors, (3959), 2761 states have internal predecessors, (3959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3959 transitions. [2021-12-15 11:39:26,004 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3959 transitions. Word has length 125 [2021-12-15 11:39:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:26,004 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3959 transitions. [2021-12-15 11:39:26,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:26,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3959 transitions. [2021-12-15 11:39:26,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-15 11:39:26,007 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:26,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:26,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 11:39:26,007 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1393816537, now seen corresponding path program 1 times [2021-12-15 11:39:26,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:26,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383421024] [2021-12-15 11:39:26,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:26,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:26,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:26,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383421024] [2021-12-15 11:39:26,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383421024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:26,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:26,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:39:26,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850536636] [2021-12-15 11:39:26,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:26,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:39:26,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:26,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:39:26,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:39:26,148 INFO L87 Difference]: Start difference. First operand 2762 states and 3959 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:28,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:28,628 INFO L93 Difference]: Finished difference Result 4858 states and 6970 transitions. [2021-12-15 11:39:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:39:28,629 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-15 11:39:28,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:28,634 INFO L225 Difference]: With dead ends: 4858 [2021-12-15 11:39:28,634 INFO L226 Difference]: Without dead ends: 4618 [2021-12-15 11:39:28,636 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 [2021-12-15 11:39:28,636 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 12544 mSDsluCounter, 5114 mSDsCounter, 0 mSdLazyCounter, 5505 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12544 SdHoareTripleChecker+Valid, 6636 SdHoareTripleChecker+Invalid, 5626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 5505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:28,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12544 Valid, 6636 Invalid, 5626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 5505 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-15 11:39:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4618 states. [2021-12-15 11:39:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4618 to 2762. [2021-12-15 11:39:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4524770642201834) internal successors, (3958), 2761 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3958 transitions. [2021-12-15 11:39:28,784 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3958 transitions. Word has length 127 [2021-12-15 11:39:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:28,785 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3958 transitions. [2021-12-15 11:39:28,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3958 transitions. [2021-12-15 11:39:28,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-15 11:39:28,788 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:28,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:28,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 11:39:28,789 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:28,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:28,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1270994115, now seen corresponding path program 1 times [2021-12-15 11:39:28,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:28,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402837293] [2021-12-15 11:39:28,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:28,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:28,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:28,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402837293] [2021-12-15 11:39:28,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402837293] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:28,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:28,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:39:28,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926472555] [2021-12-15 11:39:28,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:28,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:39:28,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:28,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:39:28,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:39:28,894 INFO L87 Difference]: Start difference. First operand 2762 states and 3958 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:31,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:39:31,475 INFO L93 Difference]: Finished difference Result 4676 states and 6666 transitions. [2021-12-15 11:39:31,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:39:31,475 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2021-12-15 11:39:31,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:39:31,480 INFO L225 Difference]: With dead ends: 4676 [2021-12-15 11:39:31,480 INFO L226 Difference]: Without dead ends: 4474 [2021-12-15 11:39:31,481 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 [2021-12-15 11:39:31,482 INFO L933 BasicCegarLoop]: 1510 mSDtfsCounter, 7077 mSDsluCounter, 4936 mSDsCounter, 0 mSdLazyCounter, 5591 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7077 SdHoareTripleChecker+Valid, 6446 SdHoareTripleChecker+Invalid, 5824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 5591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:39:31,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7077 Valid, 6446 Invalid, 5824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 5591 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-15 11:39:31,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2021-12-15 11:39:31,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 2762. [2021-12-15 11:39:31,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2725 states have (on average 1.4521100917431193) internal successors, (3957), 2761 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3957 transitions. [2021-12-15 11:39:31,629 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3957 transitions. Word has length 127 [2021-12-15 11:39:31,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:39:31,630 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3957 transitions. [2021-12-15 11:39:31,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 8 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:39:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3957 transitions. [2021-12-15 11:39:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-15 11:39:31,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:39:31,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:39:31,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 11:39:31,633 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 34 more)] === [2021-12-15 11:39:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:39:31,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1017360051, now seen corresponding path program 1 times [2021-12-15 11:39:31,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:39:31,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734881419] [2021-12-15 11:39:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:39:31,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:39:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:39:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:39:31,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:39:31,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734881419] [2021-12-15 11:39:31,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734881419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:39:31,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:39:31,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:39:31,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646557138] [2021-12-15 11:39:31,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:39:31,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:39:31,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:39:31,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:39:31,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:39:31,818 INFO L87 Difference]: Start difference. First operand 2762 states and 3957 transitions. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)