./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e3838e9b0fe368810fc333620df3a05f4f501b739959aedb61fcfde88b41758 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 12:06:59,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 12:06:59,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 12:06:59,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 12:06:59,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 12:06:59,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 12:06:59,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 12:06:59,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 12:06:59,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 12:06:59,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 12:06:59,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 12:06:59,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 12:06:59,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 12:06:59,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 12:06:59,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 12:06:59,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 12:06:59,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 12:06:59,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 12:06:59,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 12:06:59,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 12:06:59,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 12:06:59,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 12:06:59,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 12:06:59,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 12:06:59,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 12:06:59,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 12:06:59,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 12:06:59,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 12:06:59,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 12:06:59,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 12:06:59,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 12:06:59,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 12:06:59,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 12:06:59,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 12:06:59,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 12:06:59,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 12:06:59,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 12:06:59,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 12:06:59,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 12:06:59,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 12:06:59,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 12:06:59,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 12:06:59,172 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 12:06:59,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 12:06:59,172 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 12:06:59,173 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 12:06:59,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 12:06:59,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 12:06:59,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 12:06:59,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 12:06:59,174 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 12:06:59,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 12:06:59,175 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 12:06:59,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 12:06:59,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 12:06:59,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 12:06:59,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 12:06:59,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 12:06:59,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 12:06:59,176 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 12:06:59,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 12:06:59,176 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 12:06:59,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 12:06:59,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 12:06:59,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 12:06:59,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 12:06:59,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 12:06:59,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 12:06:59,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 12:06:59,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 12:06:59,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 12:06:59,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 12:06:59,178 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 12:06:59,178 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 12:06:59,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 12:06:59,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 12:06:59,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3838e9b0fe368810fc333620df3a05f4f501b739959aedb61fcfde88b41758 [2021-12-22 12:06:59,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 12:06:59,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 12:06:59,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 12:06:59,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 12:06:59,424 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 12:06:59,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-12-22 12:06:59,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4ae49636/b54d4362dab14fdcafed17b593dcbf64/FLAG0d1b8eaa9 [2021-12-22 12:07:00,184 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 12:07:00,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-12-22 12:07:00,235 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4ae49636/b54d4362dab14fdcafed17b593dcbf64/FLAG0d1b8eaa9 [2021-12-22 12:07:00,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4ae49636/b54d4362dab14fdcafed17b593dcbf64 [2021-12-22 12:07:00,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 12:07:00,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 12:07:00,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 12:07:00,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 12:07:00,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 12:07:00,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:07:00" (1/1) ... [2021-12-22 12:07:00,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd9c3b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:00, skipping insertion in model container [2021-12-22 12:07:00,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:07:00" (1/1) ... [2021-12-22 12:07:00,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 12:07:00,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 12:07:01,445 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93880,93893] [2021-12-22 12:07:01,544 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127977,127990] [2021-12-22 12:07:01,636 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184673,184686] [2021-12-22 12:07:01,704 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[220032,220045] [2021-12-22 12:07:01,719 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229801,229814] [2021-12-22 12:07:01,724 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[232051,232064] [2021-12-22 12:07:01,749 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249702,249715] [2021-12-22 12:07:01,766 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257723,257736] [2021-12-22 12:07:01,810 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288453,288466] [2021-12-22 12:07:01,874 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[318193,318206] [2021-12-22 12:07:01,992 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[406252,406265] [2021-12-22 12:07:02,020 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[425331,425344] [2021-12-22 12:07:02,049 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445911,445924] [2021-12-22 12:07:02,059 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453486,453499] [2021-12-22 12:07:02,065 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[457284,457297] [2021-12-22 12:07:02,086 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472883,472896] [2021-12-22 12:07:02,112 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488771,488784] [2021-12-22 12:07:02,157 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[523323,523336] [2021-12-22 12:07:02,271 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617972,617985] [2021-12-22 12:07:02,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 12:07:02,448 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 12:07:02,600 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93880,93893] [2021-12-22 12:07:02,641 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127977,127990] [2021-12-22 12:07:02,705 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184673,184686] [2021-12-22 12:07:02,743 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[220032,220045] [2021-12-22 12:07:02,754 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229801,229814] [2021-12-22 12:07:02,758 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[232051,232064] [2021-12-22 12:07:02,778 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249702,249715] [2021-12-22 12:07:02,787 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257723,257736] [2021-12-22 12:07:02,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288453,288466] [2021-12-22 12:07:02,887 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[318193,318206] [2021-12-22 12:07:02,982 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[406252,406265] [2021-12-22 12:07:03,004 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[425331,425344] [2021-12-22 12:07:03,027 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445911,445924] [2021-12-22 12:07:03,037 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453486,453499] [2021-12-22 12:07:03,042 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[457284,457297] [2021-12-22 12:07:03,058 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472883,472896] [2021-12-22 12:07:03,075 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488771,488784] [2021-12-22 12:07:03,112 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[523323,523336] [2021-12-22 12:07:03,207 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-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617972,617985] [2021-12-22 12:07:03,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 12:07:03,373 INFO L208 MainTranslator]: Completed translation [2021-12-22 12:07:03,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03 WrapperNode [2021-12-22 12:07:03,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 12:07:03,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 12:07:03,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 12:07:03,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 12:07:03,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:03,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:03,822 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29764 [2021-12-22 12:07:03,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 12:07:03,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 12:07:03,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 12:07:03,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 12:07:03,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:03,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:03,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:03,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:04,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:04,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:04,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:04,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 12:07:04,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 12:07:04,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 12:07:04,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 12:07:04,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (1/1) ... [2021-12-22 12:07:04,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 12:07:04,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 12:07:04,356 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) [2021-12-22 12:07:04,374 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 [2021-12-22 12:07:04,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 12:07:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 12:07:04,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 12:07:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 12:07:04,954 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 12:07:04,955 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 12:07:12,959 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 12:07:13,001 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 12:07:13,001 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 12:07:13,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:07:13 BoogieIcfgContainer [2021-12-22 12:07:13,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 12:07:13,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 12:07:13,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 12:07:13,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 12:07:13,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:07:00" (1/3) ... [2021-12-22 12:07:13,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2128f169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:07:13, skipping insertion in model container [2021-12-22 12:07:13,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:07:03" (2/3) ... [2021-12-22 12:07:13,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2128f169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:07:13, skipping insertion in model container [2021-12-22 12:07:13,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:07:13" (3/3) ... [2021-12-22 12:07:13,014 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2021-12-22 12:07:13,017 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 12:07:13,017 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-12-22 12:07:13,071 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 12:07:13,077 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 [2021-12-22 12:07:13,077 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-12-22 12:07:13,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 6346 states, 6326 states have (on average 1.7758457160923173) internal successors, (11234), 6345 states have internal predecessors, (11234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:13,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-22 12:07:13,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:13,188 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] [2021-12-22 12:07:13,189 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:13,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:13,193 INFO L85 PathProgramCache]: Analyzing trace with hash -280850909, now seen corresponding path program 1 times [2021-12-22 12:07:13,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:13,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435057093] [2021-12-22 12:07:13,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:13,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:13,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:13,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:13,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435057093] [2021-12-22 12:07:13,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435057093] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:13,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:13,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:07:13,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033609055] [2021-12-22 12:07:13,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:13,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:07:13,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:13,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:07:13,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:07:13,705 INFO L87 Difference]: Start difference. First operand has 6346 states, 6326 states have (on average 1.7758457160923173) internal successors, (11234), 6345 states have internal predecessors, (11234), 0 states have call successors, (0), 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 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:17,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:17,497 INFO L93 Difference]: Finished difference Result 9409 states and 16411 transitions. [2021-12-22 12:07:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:07:17,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-12-22 12:07:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:17,539 INFO L225 Difference]: With dead ends: 9409 [2021-12-22 12:07:17,540 INFO L226 Difference]: Without dead ends: 5984 [2021-12-22 12:07:17,551 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 [2021-12-22 12:07:17,554 INFO L933 BasicCegarLoop]: 4931 mSDtfsCounter, 29365 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 4529 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29365 SdHoareTripleChecker+Valid, 5960 SdHoareTripleChecker+Invalid, 4636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 4529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:17,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29365 Valid, 5960 Invalid, 4636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 4529 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-22 12:07:17,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2021-12-22 12:07:17,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 5951. [2021-12-22 12:07:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5951 states, 5932 states have (on average 1.295515846257586) internal successors, (7685), 5950 states have internal predecessors, (7685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 7685 transitions. [2021-12-22 12:07:17,787 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 7685 transitions. Word has length 78 [2021-12-22 12:07:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:17,787 INFO L470 AbstractCegarLoop]: Abstraction has 5951 states and 7685 transitions. [2021-12-22 12:07:17,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 7685 transitions. [2021-12-22 12:07:17,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 12:07:17,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:17,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:07:17,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 12:07:17,799 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:17,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:17,799 INFO L85 PathProgramCache]: Analyzing trace with hash -71857781, now seen corresponding path program 1 times [2021-12-22 12:07:17,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:17,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006941977] [2021-12-22 12:07:17,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:17,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:17,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:17,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006941977] [2021-12-22 12:07:17,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006941977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:17,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:17,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:07:17,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397518727] [2021-12-22 12:07:17,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:17,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:07:17,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:17,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:07:17,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:07:17,905 INFO L87 Difference]: Start difference. First operand 5951 states and 7685 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:21,299 INFO L93 Difference]: Finished difference Result 11857 states and 15471 transitions. [2021-12-22 12:07:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:07:21,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-12-22 12:07:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:21,323 INFO L225 Difference]: With dead ends: 11857 [2021-12-22 12:07:21,323 INFO L226 Difference]: Without dead ends: 7978 [2021-12-22 12:07:21,330 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 [2021-12-22 12:07:21,331 INFO L933 BasicCegarLoop]: 3086 mSDtfsCounter, 23455 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 4550 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23455 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 4693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 4550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:21,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23455 Valid, 4112 Invalid, 4693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 4550 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-22 12:07:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2021-12-22 12:07:21,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 7954. [2021-12-22 12:07:21,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7954 states, 7935 states have (on average 1.2995589161940768) internal successors, (10312), 7953 states have internal predecessors, (10312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:21,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7954 states to 7954 states and 10312 transitions. [2021-12-22 12:07:21,541 INFO L78 Accepts]: Start accepts. Automaton has 7954 states and 10312 transitions. Word has length 79 [2021-12-22 12:07:21,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:21,542 INFO L470 AbstractCegarLoop]: Abstraction has 7954 states and 10312 transitions. [2021-12-22 12:07:21,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:21,543 INFO L276 IsEmpty]: Start isEmpty. Operand 7954 states and 10312 transitions. [2021-12-22 12:07:21,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-22 12:07:21,555 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:21,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:07:21,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 12:07:21,556 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:21,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:21,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1179108102, now seen corresponding path program 1 times [2021-12-22 12:07:21,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:21,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091922015] [2021-12-22 12:07:21,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:21,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:21,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:21,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091922015] [2021-12-22 12:07:21,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091922015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:21,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:21,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:07:21,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347308646] [2021-12-22 12:07:21,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:21,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:07:21,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:21,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:07:21,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:07:21,686 INFO L87 Difference]: Start difference. First operand 7954 states and 10312 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:24,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:24,027 INFO L93 Difference]: Finished difference Result 13550 states and 17555 transitions. [2021-12-22 12:07:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:07:24,028 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-12-22 12:07:24,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:24,054 INFO L225 Difference]: With dead ends: 13550 [2021-12-22 12:07:24,055 INFO L226 Difference]: Without dead ends: 8760 [2021-12-22 12:07:24,065 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 [2021-12-22 12:07:24,066 INFO L933 BasicCegarLoop]: 2516 mSDtfsCounter, 17833 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 3231 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17833 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 3231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:24,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17833 Valid, 3296 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 3231 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-22 12:07:24,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8760 states. [2021-12-22 12:07:24,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8760 to 8729. [2021-12-22 12:07:24,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8729 states, 8710 states have (on average 1.304247990815155) internal successors, (11360), 8728 states have internal predecessors, (11360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8729 states to 8729 states and 11360 transitions. [2021-12-22 12:07:24,387 INFO L78 Accepts]: Start accepts. Automaton has 8729 states and 11360 transitions. Word has length 80 [2021-12-22 12:07:24,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:24,388 INFO L470 AbstractCegarLoop]: Abstraction has 8729 states and 11360 transitions. [2021-12-22 12:07:24,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:24,390 INFO L276 IsEmpty]: Start isEmpty. Operand 8729 states and 11360 transitions. [2021-12-22 12:07:24,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-22 12:07:24,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:24,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:07:24,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 12:07:24,402 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:24,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:24,403 INFO L85 PathProgramCache]: Analyzing trace with hash -420988062, now seen corresponding path program 1 times [2021-12-22 12:07:24,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:24,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246694738] [2021-12-22 12:07:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:24,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:24,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:24,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246694738] [2021-12-22 12:07:24,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246694738] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:24,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:24,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 12:07:24,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194694407] [2021-12-22 12:07:24,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:24,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-22 12:07:24,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:24,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-22 12:07:24,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-22 12:07:24,638 INFO L87 Difference]: Start difference. First operand 8729 states and 11360 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:29,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:29,599 INFO L93 Difference]: Finished difference Result 9906 states and 12924 transitions. [2021-12-22 12:07:29,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 12:07:29,600 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-12-22 12:07:29,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:29,625 INFO L225 Difference]: With dead ends: 9906 [2021-12-22 12:07:29,626 INFO L226 Difference]: Without dead ends: 9900 [2021-12-22 12:07:29,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-12-22 12:07:29,629 INFO L933 BasicCegarLoop]: 2544 mSDtfsCounter, 22123 mSDsluCounter, 9313 mSDsCounter, 0 mSdLazyCounter, 11387 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22123 SdHoareTripleChecker+Valid, 11857 SdHoareTripleChecker+Invalid, 11813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 11387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:29,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22123 Valid, 11857 Invalid, 11813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 11387 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-22 12:07:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9900 states. [2021-12-22 12:07:29,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9900 to 8729. [2021-12-22 12:07:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8729 states, 8710 states have (on average 1.3041331802525833) internal successors, (11359), 8728 states have internal predecessors, (11359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:30,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8729 states to 8729 states and 11359 transitions. [2021-12-22 12:07:30,021 INFO L78 Accepts]: Start accepts. Automaton has 8729 states and 11359 transitions. Word has length 80 [2021-12-22 12:07:30,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:30,023 INFO L470 AbstractCegarLoop]: Abstraction has 8729 states and 11359 transitions. [2021-12-22 12:07:30,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:30,023 INFO L276 IsEmpty]: Start isEmpty. Operand 8729 states and 11359 transitions. [2021-12-22 12:07:30,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-22 12:07:30,036 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:30,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:07:30,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 12:07:30,037 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:30,040 INFO L85 PathProgramCache]: Analyzing trace with hash 581417844, now seen corresponding path program 1 times [2021-12-22 12:07:30,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:30,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436889607] [2021-12-22 12:07:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:30,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:30,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:30,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:30,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436889607] [2021-12-22 12:07:30,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436889607] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:30,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:30,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:07:30,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497152853] [2021-12-22 12:07:30,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:30,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:07:30,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:30,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:07:30,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:07:30,189 INFO L87 Difference]: Start difference. First operand 8729 states and 11359 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:32,684 INFO L93 Difference]: Finished difference Result 18073 states and 23533 transitions. [2021-12-22 12:07:32,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:07:32,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-12-22 12:07:32,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:32,705 INFO L225 Difference]: With dead ends: 18073 [2021-12-22 12:07:32,705 INFO L226 Difference]: Without dead ends: 11729 [2021-12-22 12:07:32,715 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 [2021-12-22 12:07:32,716 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 16847 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 3093 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16847 SdHoareTripleChecker+Valid, 3128 SdHoareTripleChecker+Invalid, 3335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 3093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:32,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16847 Valid, 3128 Invalid, 3335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 3093 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-22 12:07:32,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11729 states. [2021-12-22 12:07:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11729 to 11701. [2021-12-22 12:07:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11701 states, 11682 states have (on average 1.2846259202191406) internal successors, (15007), 11700 states have internal predecessors, (15007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11701 states to 11701 states and 15007 transitions. [2021-12-22 12:07:33,168 INFO L78 Accepts]: Start accepts. Automaton has 11701 states and 15007 transitions. Word has length 80 [2021-12-22 12:07:33,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:33,168 INFO L470 AbstractCegarLoop]: Abstraction has 11701 states and 15007 transitions. [2021-12-22 12:07:33,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:33,169 INFO L276 IsEmpty]: Start isEmpty. Operand 11701 states and 15007 transitions. [2021-12-22 12:07:33,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-22 12:07:33,186 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:33,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:07:33,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 12:07:33,186 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:33,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:33,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1834750067, now seen corresponding path program 1 times [2021-12-22 12:07:33,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:33,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703812300] [2021-12-22 12:07:33,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:33,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:33,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:33,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703812300] [2021-12-22 12:07:33,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703812300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:33,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:33,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-22 12:07:33,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943399162] [2021-12-22 12:07:33,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:33,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-22 12:07:33,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:33,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-22 12:07:33,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-22 12:07:33,551 INFO L87 Difference]: Start difference. First operand 11701 states and 15007 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:38,350 INFO L93 Difference]: Finished difference Result 30001 states and 41693 transitions. [2021-12-22 12:07:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-22 12:07:38,351 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-22 12:07:38,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:38,398 INFO L225 Difference]: With dead ends: 30001 [2021-12-22 12:07:38,398 INFO L226 Difference]: Without dead ends: 29992 [2021-12-22 12:07:38,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=293, Invalid=1039, Unknown=0, NotChecked=0, Total=1332 [2021-12-22 12:07:38,408 INFO L933 BasicCegarLoop]: 4976 mSDtfsCounter, 26217 mSDsluCounter, 35225 mSDsCounter, 0 mSdLazyCounter, 4591 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26217 SdHoareTripleChecker+Valid, 40201 SdHoareTripleChecker+Invalid, 5198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 4591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:38,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26217 Valid, 40201 Invalid, 5198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [607 Valid, 4591 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 12:07:38,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29992 states. [2021-12-22 12:07:39,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29992 to 11692. [2021-12-22 12:07:39,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11692 states, 11674 states have (on average 1.2847353092341955) internal successors, (14998), 11691 states have internal predecessors, (14998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:39,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11692 states to 11692 states and 14998 transitions. [2021-12-22 12:07:39,257 INFO L78 Accepts]: Start accepts. Automaton has 11692 states and 14998 transitions. Word has length 81 [2021-12-22 12:07:39,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:39,257 INFO L470 AbstractCegarLoop]: Abstraction has 11692 states and 14998 transitions. [2021-12-22 12:07:39,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:39,257 INFO L276 IsEmpty]: Start isEmpty. Operand 11692 states and 14998 transitions. [2021-12-22 12:07:39,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-22 12:07:39,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:39,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:07:39,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 12:07:39,268 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2058965680, now seen corresponding path program 1 times [2021-12-22 12:07:39,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:39,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900330861] [2021-12-22 12:07:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:39,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:39,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:39,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:39,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900330861] [2021-12-22 12:07:39,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900330861] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:39,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:39,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 12:07:39,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606378793] [2021-12-22 12:07:39,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:39,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 12:07:39,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:39,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 12:07:39,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 12:07:39,355 INFO L87 Difference]: Start difference. First operand 11692 states and 14998 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:42,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:42,217 INFO L93 Difference]: Finished difference Result 23265 states and 30123 transitions. [2021-12-22 12:07:42,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 12:07:42,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-22 12:07:42,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:42,239 INFO L225 Difference]: With dead ends: 23265 [2021-12-22 12:07:42,240 INFO L226 Difference]: Without dead ends: 16049 [2021-12-22 12:07:42,248 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 [2021-12-22 12:07:42,249 INFO L933 BasicCegarLoop]: 2195 mSDtfsCounter, 15554 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 2802 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15554 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:42,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15554 Valid, 2965 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2802 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-22 12:07:42,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16049 states. [2021-12-22 12:07:43,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16049 to 16029. [2021-12-22 12:07:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16029 states, 16011 states have (on average 1.291674473799263) internal successors, (20681), 16028 states have internal predecessors, (20681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:43,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16029 states to 16029 states and 20681 transitions. [2021-12-22 12:07:43,329 INFO L78 Accepts]: Start accepts. Automaton has 16029 states and 20681 transitions. Word has length 81 [2021-12-22 12:07:43,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:43,330 INFO L470 AbstractCegarLoop]: Abstraction has 16029 states and 20681 transitions. [2021-12-22 12:07:43,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:43,330 INFO L276 IsEmpty]: Start isEmpty. Operand 16029 states and 20681 transitions. [2021-12-22 12:07:43,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-22 12:07:43,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:43,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 12:07:43,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 12:07:43,342 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:43,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:43,342 INFO L85 PathProgramCache]: Analyzing trace with hash -262268880, now seen corresponding path program 1 times [2021-12-22 12:07:43,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:43,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9170389] [2021-12-22 12:07:43,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:43,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:43,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:43,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:43,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9170389] [2021-12-22 12:07:43,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9170389] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:43,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:43,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-22 12:07:43,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366019657] [2021-12-22 12:07:43,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:43,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-22 12:07:43,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:43,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 12:07:43,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-12-22 12:07:43,496 INFO L87 Difference]: Start difference. First operand 16029 states and 20681 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:50,875 INFO L93 Difference]: Finished difference Result 33640 states and 46014 transitions. [2021-12-22 12:07:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-22 12:07:50,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-22 12:07:50,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:50,921 INFO L225 Difference]: With dead ends: 33640 [2021-12-22 12:07:50,921 INFO L226 Difference]: Without dead ends: 30257 [2021-12-22 12:07:50,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2021-12-22 12:07:50,933 INFO L933 BasicCegarLoop]: 2278 mSDtfsCounter, 10779 mSDsluCounter, 9747 mSDsCounter, 0 mSdLazyCounter, 12100 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10779 SdHoareTripleChecker+Valid, 12025 SdHoareTripleChecker+Invalid, 12181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 12100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:50,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10779 Valid, 12025 Invalid, 12181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 12100 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-22 12:07:50,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30257 states. [2021-12-22 12:07:52,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30257 to 16036. [2021-12-22 12:07:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16036 states, 16018 states have (on average 1.2915470096141841) internal successors, (20688), 16035 states have internal predecessors, (20688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16036 states to 16036 states and 20688 transitions. [2021-12-22 12:07:52,329 INFO L78 Accepts]: Start accepts. Automaton has 16036 states and 20688 transitions. Word has length 81 [2021-12-22 12:07:52,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:52,329 INFO L470 AbstractCegarLoop]: Abstraction has 16036 states and 20688 transitions. [2021-12-22 12:07:52,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:52,330 INFO L276 IsEmpty]: Start isEmpty. Operand 16036 states and 20688 transitions. [2021-12-22 12:07:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-22 12:07:52,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:52,342 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] [2021-12-22 12:07:52,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 12:07:52,342 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:52,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:52,343 INFO L85 PathProgramCache]: Analyzing trace with hash -237576773, now seen corresponding path program 1 times [2021-12-22 12:07:52,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:52,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248040839] [2021-12-22 12:07:52,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:52,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 12:07:52,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 12:07:52,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 12:07:52,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248040839] [2021-12-22 12:07:52,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248040839] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 12:07:52,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 12:07:52,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 12:07:52,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642077583] [2021-12-22 12:07:52,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 12:07:52,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 12:07:52,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 12:07:52,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 12:07:52,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 12:07:52,413 INFO L87 Difference]: Start difference. First operand 16036 states and 20688 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:54,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 12:07:54,535 INFO L93 Difference]: Finished difference Result 31929 states and 41560 transitions. [2021-12-22 12:07:54,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 12:07:54,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-12-22 12:07:54,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 12:07:54,564 INFO L225 Difference]: With dead ends: 31929 [2021-12-22 12:07:54,564 INFO L226 Difference]: Without dead ends: 19647 [2021-12-22 12:07:54,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 12:07:54,577 INFO L933 BasicCegarLoop]: 3945 mSDtfsCounter, 3985 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3985 SdHoareTripleChecker+Valid, 5024 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 12:07:54,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3985 Valid, 5024 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 12:07:54,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19647 states. [2021-12-22 12:07:56,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19647 to 19618. [2021-12-22 12:07:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19618 states, 19600 states have (on average 1.2878061224489796) internal successors, (25241), 19617 states have internal predecessors, (25241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:56,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19618 states to 19618 states and 25241 transitions. [2021-12-22 12:07:56,249 INFO L78 Accepts]: Start accepts. Automaton has 19618 states and 25241 transitions. Word has length 82 [2021-12-22 12:07:56,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 12:07:56,249 INFO L470 AbstractCegarLoop]: Abstraction has 19618 states and 25241 transitions. [2021-12-22 12:07:56,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 12:07:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 19618 states and 25241 transitions. [2021-12-22 12:07:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-22 12:07:56,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 12:07:56,261 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] [2021-12-22 12:07:56,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 12:07:56,261 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-12-22 12:07:56,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 12:07:56,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1592112302, now seen corresponding path program 1 times [2021-12-22 12:07:56,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 12:07:56,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581876111] [2021-12-22 12:07:56,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 12:07:56,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 12:07:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat