./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.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 ea17b6f261bb6e2069b46537416ceb2b28c77bf12fbc31c6c070453fa873ea8f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:36:31,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:36:31,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:36:31,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:36:31,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:36:31,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:36:31,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:36:31,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:36:31,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:36:31,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:36:31,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:36:31,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:36:31,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:36:31,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:36:31,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:36:31,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:36:31,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:36:31,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:36:31,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:36:31,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:36:31,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:36:31,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:36:31,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:36:31,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:36:31,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:36:31,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:36:31,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:36:31,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:36:31,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:36:31,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:36:31,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:36:31,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:36:31,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:36:31,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:36:31,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:36:31,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:36:31,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:36:31,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:36:31,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:36:31,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:36:31,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:36:31,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:36:31,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:36:31,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:36:31,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:36:31,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:36:31,142 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:36:31,142 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:36:31,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:36:31,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:36:31,142 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:36:31,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:36:31,143 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:36:31,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:36:31,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:36:31,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:36:31,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:36:31,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:36:31,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:36:31,144 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:36:31,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:36:31,145 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:36:31,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:36:31,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:36:31,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:36:31,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:36:31,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:36:31,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:36:31,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:36:31,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:36:31,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:36:31,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:36:31,147 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:36:31,147 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:36:31,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:36:31,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:36:31,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b6f261bb6e2069b46537416ceb2b28c77bf12fbc31c6c070453fa873ea8f [2021-12-15 11:36:31,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:36:31,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:36:31,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:36:31,380 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:36:31,381 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:36:31,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2021-12-15 11:36:31,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f5ecf2b/814d1e26a64f4c52bc19304c805c7b90/FLAGc1f28f570 [2021-12-15 11:36:31,949 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:36:31,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2021-12-15 11:36:31,987 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f5ecf2b/814d1e26a64f4c52bc19304c805c7b90/FLAGc1f28f570 [2021-12-15 11:36:32,162 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f5ecf2b/814d1e26a64f4c52bc19304c805c7b90 [2021-12-15 11:36:32,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:36:32,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:36:32,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:36:32,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:36:32,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:36:32,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:36:32" (1/1) ... [2021-12-15 11:36:32,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea55307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:32, skipping insertion in model container [2021-12-15 11:36:32,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:36:32" (1/1) ... [2021-12-15 11:36:32,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:36:32,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:36:32,864 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[80354,80367] [2021-12-15 11:36:32,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[115904,115917] [2021-12-15 11:36:32,990 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[133708,133721] [2021-12-15 11:36:33,007 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142627,142640] [2021-12-15 11:36:33,022 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[147060,147073] [2021-12-15 11:36:33,038 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[151393,151406] [2021-12-15 11:36:33,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[186229,186242] [2021-12-15 11:36:33,154 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[203860,203873] [2021-12-15 11:36:33,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[212816,212829] [2021-12-15 11:36:33,176 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[217286,217299] [2021-12-15 11:36:33,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[221656,221669] [2021-12-15 11:36:33,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[240553,240566] [2021-12-15 11:36:33,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[249509,249522] [2021-12-15 11:36:33,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[253979,253992] [2021-12-15 11:36:33,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[258349,258362] [2021-12-15 11:36:33,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[263314,263327] [2021-12-15 11:36:33,261 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[267693,267706] [2021-12-15 11:36:33,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[272163,272176] [2021-12-15 11:36:33,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[276533,276546] [2021-12-15 11:36:33,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[281119,281132] [2021-12-15 11:36:33,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[285656,285669] [2021-12-15 11:36:33,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[290122,290135] [2021-12-15 11:36:33,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:36:33,348 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:36:33,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[80354,80367] [2021-12-15 11:36:33,607 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[115904,115917] [2021-12-15 11:36:33,641 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[133708,133721] [2021-12-15 11:36:33,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142627,142640] [2021-12-15 11:36:33,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[147060,147073] [2021-12-15 11:36:33,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[151393,151406] [2021-12-15 11:36:33,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[186229,186242] [2021-12-15 11:36:33,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[203860,203873] [2021-12-15 11:36:33,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[212816,212829] [2021-12-15 11:36:33,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[217286,217299] [2021-12-15 11:36:33,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[221656,221669] [2021-12-15 11:36:33,790 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[240553,240566] [2021-12-15 11:36:33,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[249509,249522] [2021-12-15 11:36:33,810 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.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[253979,253992] [2021-12-15 11:36:33,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[258349,258362] [2021-12-15 11:36:33,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[263314,263327] [2021-12-15 11:36:33,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[267693,267706] [2021-12-15 11:36:33,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[272163,272176] [2021-12-15 11:36:33,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[276533,276546] [2021-12-15 11:36:33,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[281119,281132] [2021-12-15 11:36:33,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[285656,285669] [2021-12-15 11:36:33,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[290122,290135] [2021-12-15 11:36:33,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:36:33,900 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:36:33,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33 WrapperNode [2021-12-15 11:36:33,901 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:36:33,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:36:33,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:36:33,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:36:33,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:33,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,087 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12453 [2021-12-15 11:36:34,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:36:34,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:36:34,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:36:34,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:36:34,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:36:34,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:36:34,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:36:34,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:36:34,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (1/1) ... [2021-12-15 11:36:34,220 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:36:34,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:36:34,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 11:36:34,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 11:36:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:36:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:36:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:36:34,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:36:34,680 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:36:34,681 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:36:37,832 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:36:37,851 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:36:37,852 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:36:37,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:36:37 BoogieIcfgContainer [2021-12-15 11:36:37,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:36:37,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:36:37,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:36:37,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:36:37,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:36:32" (1/3) ... [2021-12-15 11:36:37,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1febfd63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:36:37, skipping insertion in model container [2021-12-15 11:36:37,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:33" (2/3) ... [2021-12-15 11:36:37,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1febfd63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:36:37, skipping insertion in model container [2021-12-15 11:36:37,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:36:37" (3/3) ... [2021-12-15 11:36:37,860 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2021-12-15 11:36:37,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:36:37,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-12-15 11:36:37,896 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:36:37,900 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:36:37,901 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-12-15 11:36:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:38,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-15 11:36:38,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:38,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:38,025 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:38,031 INFO L85 PathProgramCache]: Analyzing trace with hash -876960142, now seen corresponding path program 1 times [2021-12-15 11:36:38,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:38,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681264300] [2021-12-15 11:36:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:38,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:38,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:38,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681264300] [2021-12-15 11:36:38,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681264300] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:38,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:38,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:38,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233956385] [2021-12-15 11:36:38,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:38,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:38,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:38,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:38,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:38,384 INFO L87 Difference]: Start difference. First operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:39,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:39,392 INFO L93 Difference]: Finished difference Result 2740 states and 4723 transitions. [2021-12-15 11:36:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:36:39,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-15 11:36:39,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:39,427 INFO L225 Difference]: With dead ends: 2740 [2021-12-15 11:36:39,428 INFO L226 Difference]: Without dead ends: 1514 [2021-12-15 11:36:39,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 11:36:39,449 INFO L933 BasicCegarLoop]: 1480 mSDtfsCounter, 7564 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7564 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:39,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7564 Valid, 1558 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:36:39,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2021-12-15 11:36:39,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1514. [2021-12-15 11:36:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1492 states have (on average 1.2801608579088473) internal successors, (1910), 1513 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:39,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 1910 transitions. [2021-12-15 11:36:39,573 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 1910 transitions. Word has length 87 [2021-12-15 11:36:39,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:39,573 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 1910 transitions. [2021-12-15 11:36:39,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:39,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 1910 transitions. [2021-12-15 11:36:39,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-15 11:36:39,576 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:39,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:39,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:36:39,577 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:39,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash -567045358, now seen corresponding path program 1 times [2021-12-15 11:36:39,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:39,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193127684] [2021-12-15 11:36:39,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:39,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:39,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:39,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193127684] [2021-12-15 11:36:39,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193127684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:39,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:39,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:39,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912270974] [2021-12-15 11:36:39,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:39,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:39,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:39,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:39,729 INFO L87 Difference]: Start difference. First operand 1514 states and 1910 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:40,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:40,284 INFO L93 Difference]: Finished difference Result 1802 states and 2277 transitions. [2021-12-15 11:36:40,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:36:40,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-15 11:36:40,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:40,289 INFO L225 Difference]: With dead ends: 1802 [2021-12-15 11:36:40,289 INFO L226 Difference]: Without dead ends: 1050 [2021-12-15 11:36:40,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 11:36:40,292 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 3889 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:40,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3889 Valid, 733 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 11:36:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2021-12-15 11:36:40,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1050. [2021-12-15 11:36:40,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1028 states have (on average 1.296692607003891) internal successors, (1333), 1049 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:40,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1333 transitions. [2021-12-15 11:36:40,338 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1333 transitions. Word has length 87 [2021-12-15 11:36:40,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:40,339 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1333 transitions. [2021-12-15 11:36:40,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:40,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1333 transitions. [2021-12-15 11:36:40,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-15 11:36:40,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:40,341 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, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:40,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 11:36:40,341 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:40,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:40,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1461310094, now seen corresponding path program 1 times [2021-12-15 11:36:40,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:40,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912569744] [2021-12-15 11:36:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:40,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:40,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:40,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912569744] [2021-12-15 11:36:40,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912569744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:40,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:40,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:40,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700228820] [2021-12-15 11:36:40,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:40,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:40,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:40,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:40,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:40,414 INFO L87 Difference]: Start difference. First operand 1050 states and 1333 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:41,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:41,076 INFO L93 Difference]: Finished difference Result 1897 states and 2448 transitions. [2021-12-15 11:36:41,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:36:41,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-15 11:36:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:41,080 INFO L225 Difference]: With dead ends: 1897 [2021-12-15 11:36:41,080 INFO L226 Difference]: Without dead ends: 1345 [2021-12-15 11:36:41,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 11:36:41,082 INFO L933 BasicCegarLoop]: 642 mSDtfsCounter, 4574 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4574 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:41,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4574 Valid, 975 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:36:41,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1345 states. [2021-12-15 11:36:41,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1345 to 1257. [2021-12-15 11:36:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1235 states have (on average 1.3522267206477734) internal successors, (1670), 1256 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:41,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1670 transitions. [2021-12-15 11:36:41,112 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1670 transitions. Word has length 87 [2021-12-15 11:36:41,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:41,112 INFO L470 AbstractCegarLoop]: Abstraction has 1257 states and 1670 transitions. [2021-12-15 11:36:41,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:41,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1670 transitions. [2021-12-15 11:36:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-15 11:36:41,114 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:41,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:41,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 11:36:41,114 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash -229604869, now seen corresponding path program 1 times [2021-12-15 11:36:41,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:41,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913738334] [2021-12-15 11:36:41,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:41,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:41,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:41,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913738334] [2021-12-15 11:36:41,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913738334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:41,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:41,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:41,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146144495] [2021-12-15 11:36:41,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:41,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:41,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:41,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:41,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:41,242 INFO L87 Difference]: Start difference. First operand 1257 states and 1670 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:41,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:41,712 INFO L93 Difference]: Finished difference Result 1762 states and 2352 transitions. [2021-12-15 11:36:41,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:36:41,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-12-15 11:36:41,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:41,716 INFO L225 Difference]: With dead ends: 1762 [2021-12-15 11:36:41,716 INFO L226 Difference]: Without dead ends: 1225 [2021-12-15 11:36:41,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 11:36:41,718 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 3188 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3188 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:41,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3188 Valid, 572 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 11:36:41,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2021-12-15 11:36:41,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2021-12-15 11:36:41,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 1203 states have (on average 1.3566084788029926) internal successors, (1632), 1224 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1632 transitions. [2021-12-15 11:36:41,756 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1632 transitions. Word has length 89 [2021-12-15 11:36:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:41,756 INFO L470 AbstractCegarLoop]: Abstraction has 1225 states and 1632 transitions. [2021-12-15 11:36:41,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1632 transitions. [2021-12-15 11:36:41,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-15 11:36:41,758 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:41,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:41,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 11:36:41,759 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:41,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:41,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1812856514, now seen corresponding path program 1 times [2021-12-15 11:36:41,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:41,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622016929] [2021-12-15 11:36:41,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:41,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:41,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:41,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622016929] [2021-12-15 11:36:41,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622016929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:41,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:41,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:41,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353146715] [2021-12-15 11:36:41,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:41,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:41,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:41,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:41,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:41,844 INFO L87 Difference]: Start difference. First operand 1225 states and 1632 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:42,190 INFO L93 Difference]: Finished difference Result 1769 states and 2369 transitions. [2021-12-15 11:36:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:36:42,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2021-12-15 11:36:42,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:42,194 INFO L225 Difference]: With dead ends: 1769 [2021-12-15 11:36:42,194 INFO L226 Difference]: Without dead ends: 1106 [2021-12-15 11:36:42,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 11:36:42,196 INFO L933 BasicCegarLoop]: 575 mSDtfsCounter, 2978 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:42,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2978 Valid, 587 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 11:36:42,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2021-12-15 11:36:42,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106. [2021-12-15 11:36:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 1084 states have (on average 1.3699261992619927) internal successors, (1485), 1105 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1485 transitions. [2021-12-15 11:36:42,233 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1485 transitions. Word has length 91 [2021-12-15 11:36:42,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:42,233 INFO L470 AbstractCegarLoop]: Abstraction has 1106 states and 1485 transitions. [2021-12-15 11:36:42,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1485 transitions. [2021-12-15 11:36:42,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:36:42,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:42,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:42,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 11:36:42,236 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:42,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:42,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1129325687, now seen corresponding path program 1 times [2021-12-15 11:36:42,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:42,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748094651] [2021-12-15 11:36:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:42,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:42,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:42,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748094651] [2021-12-15 11:36:42,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748094651] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:42,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:42,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:42,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781713628] [2021-12-15 11:36:42,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:42,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:42,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:42,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:42,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:42,304 INFO L87 Difference]: Start difference. First operand 1106 states and 1485 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:42,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:42,612 INFO L93 Difference]: Finished difference Result 1596 states and 2148 transitions. [2021-12-15 11:36:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:36:42,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-12-15 11:36:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:42,616 INFO L225 Difference]: With dead ends: 1596 [2021-12-15 11:36:42,616 INFO L226 Difference]: Without dead ends: 994 [2021-12-15 11:36:42,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 11:36:42,618 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 2658 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:42,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2658 Valid, 552 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 11:36:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2021-12-15 11:36:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 994. [2021-12-15 11:36:42,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3786008230452675) internal successors, (1340), 993 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:42,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1340 transitions. [2021-12-15 11:36:42,649 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1340 transitions. Word has length 93 [2021-12-15 11:36:42,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:42,649 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1340 transitions. [2021-12-15 11:36:42,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:42,649 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1340 transitions. [2021-12-15 11:36:42,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:36:42,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:42,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:42,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 11:36:42,651 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:42,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:42,652 INFO L85 PathProgramCache]: Analyzing trace with hash 328441748, now seen corresponding path program 1 times [2021-12-15 11:36:42,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:42,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460497069] [2021-12-15 11:36:42,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:42,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:42,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:42,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460497069] [2021-12-15 11:36:42,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460497069] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:42,791 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:42,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 11:36:42,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242918726] [2021-12-15 11:36:42,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:42,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 11:36:42,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:42,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 11:36:42,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-15 11:36:42,793 INFO L87 Difference]: Start difference. First operand 994 states and 1340 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:43,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:43,479 INFO L93 Difference]: Finished difference Result 1809 states and 2377 transitions. [2021-12-15 11:36:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 11:36:43,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-15 11:36:43,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:43,483 INFO L225 Difference]: With dead ends: 1809 [2021-12-15 11:36:43,483 INFO L226 Difference]: Without dead ends: 1357 [2021-12-15 11:36:43,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-15 11:36:43,484 INFO L933 BasicCegarLoop]: 469 mSDtfsCounter, 4131 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:43,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4131 Valid, 1187 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:36:43,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2021-12-15 11:36:43,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 994. [2021-12-15 11:36:43,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3775720164609053) internal successors, (1339), 993 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1339 transitions. [2021-12-15 11:36:43,523 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1339 transitions. Word has length 95 [2021-12-15 11:36:43,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:43,526 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1339 transitions. [2021-12-15 11:36:43,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:43,526 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1339 transitions. [2021-12-15 11:36:43,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:36:43,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:43,528 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:43,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 11:36:43,529 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:43,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:43,530 INFO L85 PathProgramCache]: Analyzing trace with hash 556118932, now seen corresponding path program 1 times [2021-12-15 11:36:43,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:43,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655088935] [2021-12-15 11:36:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:43,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:43,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:43,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:43,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655088935] [2021-12-15 11:36:43,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655088935] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:43,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:43,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:36:43,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514549105] [2021-12-15 11:36:43,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:43,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:36:43,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:43,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:36:43,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:36:43,724 INFO L87 Difference]: Start difference. First operand 994 states and 1339 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:44,710 INFO L93 Difference]: Finished difference Result 2036 states and 2784 transitions. [2021-12-15 11:36:44,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-15 11:36:44,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-15 11:36:44,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:44,716 INFO L225 Difference]: With dead ends: 2036 [2021-12-15 11:36:44,716 INFO L226 Difference]: Without dead ends: 1874 [2021-12-15 11:36:44,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-15 11:36:44,718 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 4706 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4706 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:44,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4706 Valid, 3423 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:36:44,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2021-12-15 11:36:44,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1009. [2021-12-15 11:36:44,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 987 states have (on average 1.3779128672745693) internal successors, (1360), 1008 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:44,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1360 transitions. [2021-12-15 11:36:44,768 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1360 transitions. Word has length 95 [2021-12-15 11:36:44,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:44,769 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1360 transitions. [2021-12-15 11:36:44,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:44,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1360 transitions. [2021-12-15 11:36:44,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:36:44,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:44,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:44,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 11:36:44,774 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:44,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:44,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1407707980, now seen corresponding path program 1 times [2021-12-15 11:36:44,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:44,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776258049] [2021-12-15 11:36:44,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:44,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:44,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:44,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:44,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776258049] [2021-12-15 11:36:44,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776258049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:44,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:44,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:44,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466124713] [2021-12-15 11:36:44,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:44,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:44,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:44,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:44,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:44,902 INFO L87 Difference]: Start difference. First operand 1009 states and 1360 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:45,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:45,883 INFO L93 Difference]: Finished difference Result 1658 states and 2297 transitions. [2021-12-15 11:36:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-15 11:36:45,884 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-15 11:36:45,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:45,888 INFO L225 Difference]: With dead ends: 1658 [2021-12-15 11:36:45,888 INFO L226 Difference]: Without dead ends: 1376 [2021-12-15 11:36:45,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2021-12-15 11:36:45,892 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 3268 mSDsluCounter, 2034 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3268 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:45,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3268 Valid, 2572 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:36:45,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2021-12-15 11:36:45,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 994. [2021-12-15 11:36:45,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.376543209876543) internal successors, (1338), 993 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:45,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1338 transitions. [2021-12-15 11:36:45,938 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1338 transitions. Word has length 95 [2021-12-15 11:36:45,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:45,938 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1338 transitions. [2021-12-15 11:36:45,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:45,939 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1338 transitions. [2021-12-15 11:36:45,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:36:45,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:45,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:45,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 11:36:45,941 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:45,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:45,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1071889132, now seen corresponding path program 1 times [2021-12-15 11:36:45,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:45,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121188523] [2021-12-15 11:36:45,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:45,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:46,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:46,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121188523] [2021-12-15 11:36:46,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121188523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:46,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:46,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:46,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372247784] [2021-12-15 11:36:46,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:46,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:46,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:46,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:46,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:46,070 INFO L87 Difference]: Start difference. First operand 994 states and 1338 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:47,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:47,267 INFO L93 Difference]: Finished difference Result 2072 states and 2860 transitions. [2021-12-15 11:36:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:47,268 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-12-15 11:36:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:47,273 INFO L225 Difference]: With dead ends: 2072 [2021-12-15 11:36:47,273 INFO L226 Difference]: Without dead ends: 1866 [2021-12-15 11:36:47,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:36:47,275 INFO L933 BasicCegarLoop]: 644 mSDtfsCounter, 3838 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 2333 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3838 SdHoareTripleChecker+Valid, 3414 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:47,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3838 Valid, 3414 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2333 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-15 11:36:47,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2021-12-15 11:36:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 994. [2021-12-15 11:36:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.375514403292181) internal successors, (1337), 993 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:47,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1337 transitions. [2021-12-15 11:36:47,356 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1337 transitions. Word has length 95 [2021-12-15 11:36:47,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:47,356 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1337 transitions. [2021-12-15 11:36:47,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:47,357 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1337 transitions. [2021-12-15 11:36:47,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-15 11:36:47,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:47,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:47,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 11:36:47,359 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:47,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1164032538, now seen corresponding path program 1 times [2021-12-15 11:36:47,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:47,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978047663] [2021-12-15 11:36:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:47,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:47,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:47,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:47,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978047663] [2021-12-15 11:36:47,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978047663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:47,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:47,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:47,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368096173] [2021-12-15 11:36:47,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:47,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:47,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:47,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:47,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:47,477 INFO L87 Difference]: Start difference. First operand 994 states and 1337 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:48,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:48,448 INFO L93 Difference]: Finished difference Result 2008 states and 2765 transitions. [2021-12-15 11:36:48,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:48,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-15 11:36:48,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:48,453 INFO L225 Difference]: With dead ends: 2008 [2021-12-15 11:36:48,454 INFO L226 Difference]: Without dead ends: 1836 [2021-12-15 11:36:48,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:36:48,455 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 5191 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5191 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 2048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:48,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5191 Valid, 2665 Invalid, 2048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:36:48,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-12-15 11:36:48,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 994. [2021-12-15 11:36:48,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.374485596707819) internal successors, (1336), 993 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:48,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1336 transitions. [2021-12-15 11:36:48,509 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1336 transitions. Word has length 96 [2021-12-15 11:36:48,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:48,509 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1336 transitions. [2021-12-15 11:36:48,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1336 transitions. [2021-12-15 11:36:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:36:48,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:48,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:48,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 11:36:48,512 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:48,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:48,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1887012889, now seen corresponding path program 1 times [2021-12-15 11:36:48,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:48,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633971023] [2021-12-15 11:36:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:48,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:48,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:48,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633971023] [2021-12-15 11:36:48,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633971023] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:48,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:48,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:48,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310778909] [2021-12-15 11:36:48,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:48,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:48,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:48,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:48,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:48,617 INFO L87 Difference]: Start difference. First operand 994 states and 1336 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:49,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:49,458 INFO L93 Difference]: Finished difference Result 1655 states and 2268 transitions. [2021-12-15 11:36:49,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-15 11:36:49,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-15 11:36:49,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:49,462 INFO L225 Difference]: With dead ends: 1655 [2021-12-15 11:36:49,463 INFO L226 Difference]: Without dead ends: 1224 [2021-12-15 11:36:49,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-12-15 11:36:49,465 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 2180 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:49,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2180 Valid, 2317 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:36:49,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2021-12-15 11:36:49,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 994. [2021-12-15 11:36:49,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3724279835390947) internal successors, (1334), 993 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1334 transitions. [2021-12-15 11:36:49,557 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1334 transitions. Word has length 97 [2021-12-15 11:36:49,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:49,557 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1334 transitions. [2021-12-15 11:36:49,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:49,557 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1334 transitions. [2021-12-15 11:36:49,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:36:49,559 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:49,559 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:49,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 11:36:49,559 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:49,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:49,560 INFO L85 PathProgramCache]: Analyzing trace with hash -2083812519, now seen corresponding path program 1 times [2021-12-15 11:36:49,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:49,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557917375] [2021-12-15 11:36:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:49,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:49,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:49,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557917375] [2021-12-15 11:36:49,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557917375] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:49,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:49,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:49,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765943870] [2021-12-15 11:36:49,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:49,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:49,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:49,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:49,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:49,730 INFO L87 Difference]: Start difference. First operand 994 states and 1334 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:50,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:50,830 INFO L93 Difference]: Finished difference Result 2035 states and 2797 transitions. [2021-12-15 11:36:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:50,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-15 11:36:50,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:50,836 INFO L225 Difference]: With dead ends: 2035 [2021-12-15 11:36:50,836 INFO L226 Difference]: Without dead ends: 1836 [2021-12-15 11:36:50,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:36:50,839 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 5123 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5123 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:50,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5123 Valid, 2709 Invalid, 2038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:36:50,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-12-15 11:36:50,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 994. [2021-12-15 11:36:50,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3703703703703705) internal successors, (1332), 993 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1332 transitions. [2021-12-15 11:36:50,906 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1332 transitions. Word has length 97 [2021-12-15 11:36:50,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:50,907 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1332 transitions. [2021-12-15 11:36:50,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1332 transitions. [2021-12-15 11:36:50,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:36:50,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:50,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:50,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 11:36:50,909 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:50,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:50,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1112735129, now seen corresponding path program 1 times [2021-12-15 11:36:50,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:50,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239251911] [2021-12-15 11:36:50,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:50,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:51,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:51,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:51,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239251911] [2021-12-15 11:36:51,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239251911] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:51,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:51,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:51,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635036604] [2021-12-15 11:36:51,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:51,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:51,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:51,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:51,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:51,016 INFO L87 Difference]: Start difference. First operand 994 states and 1332 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:52,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:52,113 INFO L93 Difference]: Finished difference Result 2124 states and 2921 transitions. [2021-12-15 11:36:52,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:52,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-15 11:36:52,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:52,120 INFO L225 Difference]: With dead ends: 2124 [2021-12-15 11:36:52,120 INFO L226 Difference]: Without dead ends: 1866 [2021-12-15 11:36:52,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:36:52,122 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 3247 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 2602 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3247 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 2631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:52,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3247 Valid, 3837 Invalid, 2631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2602 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:36:52,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2021-12-15 11:36:52,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 994. [2021-12-15 11:36:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.368312757201646) internal successors, (1330), 993 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:52,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1330 transitions. [2021-12-15 11:36:52,255 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1330 transitions. Word has length 97 [2021-12-15 11:36:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:52,255 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1330 transitions. [2021-12-15 11:36:52,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1330 transitions. [2021-12-15 11:36:52,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:36:52,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:52,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:52,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 11:36:52,257 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:52,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:52,257 INFO L85 PathProgramCache]: Analyzing trace with hash 725787161, now seen corresponding path program 1 times [2021-12-15 11:36:52,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:52,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927407562] [2021-12-15 11:36:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:52,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:52,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:52,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:52,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927407562] [2021-12-15 11:36:52,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927407562] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:52,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:52,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:52,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802186385] [2021-12-15 11:36:52,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:52,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:52,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:52,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:52,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:52,438 INFO L87 Difference]: Start difference. First operand 994 states and 1330 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:53,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:53,294 INFO L93 Difference]: Finished difference Result 2013 states and 2762 transitions. [2021-12-15 11:36:53,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:53,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-15 11:36:53,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:53,299 INFO L225 Difference]: With dead ends: 2013 [2021-12-15 11:36:53,299 INFO L226 Difference]: Without dead ends: 1836 [2021-12-15 11:36:53,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:36:53,300 INFO L933 BasicCegarLoop]: 751 mSDtfsCounter, 3770 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 2177 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3770 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 2230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:53,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3770 Valid, 2990 Invalid, 2230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2177 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:36:53,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-12-15 11:36:53,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 994. [2021-12-15 11:36:53,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.367283950617284) internal successors, (1329), 993 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:53,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1329 transitions. [2021-12-15 11:36:53,374 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1329 transitions. Word has length 97 [2021-12-15 11:36:53,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:53,374 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1329 transitions. [2021-12-15 11:36:53,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1329 transitions. [2021-12-15 11:36:53,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:36:53,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:53,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:53,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 11:36:53,376 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:53,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:53,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1939604839, now seen corresponding path program 1 times [2021-12-15 11:36:53,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:53,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079594313] [2021-12-15 11:36:53,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:53,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:53,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:53,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:53,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079594313] [2021-12-15 11:36:53,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079594313] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:53,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:53,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:53,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185392511] [2021-12-15 11:36:53,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:53,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:53,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:53,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:53,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:53,494 INFO L87 Difference]: Start difference. First operand 994 states and 1329 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:54,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:54,433 INFO L93 Difference]: Finished difference Result 1969 states and 2694 transitions. [2021-12-15 11:36:54,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:54,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-15 11:36:54,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:54,440 INFO L225 Difference]: With dead ends: 1969 [2021-12-15 11:36:54,440 INFO L226 Difference]: Without dead ends: 1812 [2021-12-15 11:36:54,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:36:54,455 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 4275 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 3384 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:54,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4275 Valid, 3384 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:36:54,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-12-15 11:36:54,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2021-12-15 11:36:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3662551440329218) internal successors, (1328), 993 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1328 transitions. [2021-12-15 11:36:54,533 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1328 transitions. Word has length 97 [2021-12-15 11:36:54,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:54,533 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1328 transitions. [2021-12-15 11:36:54,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:54,534 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1328 transitions. [2021-12-15 11:36:54,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:36:54,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:54,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:54,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 11:36:54,536 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:54,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:54,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1267448231, now seen corresponding path program 1 times [2021-12-15 11:36:54,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:54,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681461280] [2021-12-15 11:36:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:54,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:54,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:54,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:54,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681461280] [2021-12-15 11:36:54,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681461280] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:54,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:54,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:54,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955409541] [2021-12-15 11:36:54,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:54,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:54,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:54,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:54,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:54,628 INFO L87 Difference]: Start difference. First operand 994 states and 1328 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:55,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:55,697 INFO L93 Difference]: Finished difference Result 1974 states and 2698 transitions. [2021-12-15 11:36:55,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:55,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-15 11:36:55,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:55,702 INFO L225 Difference]: With dead ends: 1974 [2021-12-15 11:36:55,702 INFO L226 Difference]: Without dead ends: 1812 [2021-12-15 11:36:55,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:36:55,704 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 3692 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3692 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:55,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3692 Valid, 2728 Invalid, 2103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:36:55,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-12-15 11:36:55,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2021-12-15 11:36:55,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3652263374485596) internal successors, (1327), 993 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:55,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1327 transitions. [2021-12-15 11:36:55,770 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1327 transitions. Word has length 97 [2021-12-15 11:36:55,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:55,770 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1327 transitions. [2021-12-15 11:36:55,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1327 transitions. [2021-12-15 11:36:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:36:55,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:55,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:55,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 11:36:55,773 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:55,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:55,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1063692153, now seen corresponding path program 1 times [2021-12-15 11:36:55,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:55,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586885176] [2021-12-15 11:36:55,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:55,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:55,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:55,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586885176] [2021-12-15 11:36:55,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586885176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:55,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:55,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:55,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995674643] [2021-12-15 11:36:55,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:55,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:55,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:55,875 INFO L87 Difference]: Start difference. First operand 994 states and 1327 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:56,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:56,983 INFO L93 Difference]: Finished difference Result 2086 states and 2861 transitions. [2021-12-15 11:36:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:56,984 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-15 11:36:56,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:56,988 INFO L225 Difference]: With dead ends: 2086 [2021-12-15 11:36:56,988 INFO L226 Difference]: Without dead ends: 1866 [2021-12-15 11:36:56,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:36:56,989 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 3238 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 4081 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:56,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3238 Valid, 4081 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:36:56,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2021-12-15 11:36:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 994. [2021-12-15 11:36:57,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3641975308641976) internal successors, (1326), 993 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:57,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1326 transitions. [2021-12-15 11:36:57,087 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1326 transitions. Word has length 97 [2021-12-15 11:36:57,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:57,087 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1326 transitions. [2021-12-15 11:36:57,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:57,088 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1326 transitions. [2021-12-15 11:36:57,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-15 11:36:57,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:57,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:57,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 11:36:57,089 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:57,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:57,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1888632039, now seen corresponding path program 1 times [2021-12-15 11:36:57,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:57,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232795991] [2021-12-15 11:36:57,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:57,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:57,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:57,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232795991] [2021-12-15 11:36:57,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232795991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:57,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:57,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:57,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080212994] [2021-12-15 11:36:57,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:57,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:57,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:57,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:57,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:57,190 INFO L87 Difference]: Start difference. First operand 994 states and 1326 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:58,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:58,202 INFO L93 Difference]: Finished difference Result 2013 states and 2757 transitions. [2021-12-15 11:36:58,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:58,202 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-15 11:36:58,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:58,206 INFO L225 Difference]: With dead ends: 2013 [2021-12-15 11:36:58,206 INFO L226 Difference]: Without dead ends: 1836 [2021-12-15 11:36:58,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:36:58,207 INFO L933 BasicCegarLoop]: 748 mSDtfsCounter, 4552 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4552 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 2288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:58,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4552 Valid, 3144 Invalid, 2288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:36:58,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2021-12-15 11:36:58,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 994. [2021-12-15 11:36:58,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3631687242798354) internal successors, (1325), 993 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1325 transitions. [2021-12-15 11:36:58,280 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1325 transitions. Word has length 97 [2021-12-15 11:36:58,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:58,280 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1325 transitions. [2021-12-15 11:36:58,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:58,280 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1325 transitions. [2021-12-15 11:36:58,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-15 11:36:58,282 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:58,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:58,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 11:36:58,282 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:58,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:58,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1325336959, now seen corresponding path program 1 times [2021-12-15 11:36:58,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:58,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156680832] [2021-12-15 11:36:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:58,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:58,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:58,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156680832] [2021-12-15 11:36:58,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156680832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:58,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:58,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:58,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834523063] [2021-12-15 11:36:58,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:58,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:58,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:58,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:58,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:58,404 INFO L87 Difference]: Start difference. First operand 994 states and 1325 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:59,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:59,428 INFO L93 Difference]: Finished difference Result 1980 states and 2704 transitions. [2021-12-15 11:36:59,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:36:59,428 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-15 11:36:59,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:59,431 INFO L225 Difference]: With dead ends: 1980 [2021-12-15 11:36:59,431 INFO L226 Difference]: Without dead ends: 1812 [2021-12-15 11:36:59,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:36:59,433 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 4167 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4167 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 2613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:59,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4167 Valid, 3510 Invalid, 2613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:36:59,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-12-15 11:36:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2021-12-15 11:36:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3611111111111112) internal successors, (1323), 993 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1323 transitions. [2021-12-15 11:36:59,501 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1323 transitions. Word has length 98 [2021-12-15 11:36:59,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:59,502 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1323 transitions. [2021-12-15 11:36:59,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1323 transitions. [2021-12-15 11:36:59,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-15 11:36:59,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:59,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:59,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 11:36:59,504 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:59,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:59,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1077039647, now seen corresponding path program 1 times [2021-12-15 11:36:59,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:59,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139745419] [2021-12-15 11:36:59,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:59,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:59,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:59,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139745419] [2021-12-15 11:36:59,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139745419] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:59,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:59,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:36:59,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239484578] [2021-12-15 11:36:59,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:59,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:36:59,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:59,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:36:59,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:36:59,634 INFO L87 Difference]: Start difference. First operand 994 states and 1323 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:00,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:00,619 INFO L93 Difference]: Finished difference Result 1970 states and 2689 transitions. [2021-12-15 11:37:00,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:00,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-15 11:37:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:00,622 INFO L225 Difference]: With dead ends: 1970 [2021-12-15 11:37:00,623 INFO L226 Difference]: Without dead ends: 1812 [2021-12-15 11:37:00,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:00,624 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 4066 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4066 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:00,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4066 Valid, 3728 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:37:00,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-12-15 11:37:00,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2021-12-15 11:37:00,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.360082304526749) internal successors, (1322), 993 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:00,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1322 transitions. [2021-12-15 11:37:00,714 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1322 transitions. Word has length 98 [2021-12-15 11:37:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:00,715 INFO L470 AbstractCegarLoop]: Abstraction has 994 states and 1322 transitions. [2021-12-15 11:37:00,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1322 transitions. [2021-12-15 11:37:00,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-15 11:37:00,716 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:00,716 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:00,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 11:37:00,717 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:00,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:00,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1588992191, now seen corresponding path program 1 times [2021-12-15 11:37:00,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:00,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323400236] [2021-12-15 11:37:00,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:00,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:00,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:00,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:00,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323400236] [2021-12-15 11:37:00,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323400236] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:00,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:00,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:00,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115529454] [2021-12-15 11:37:00,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:00,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:00,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:00,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:00,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:00,878 INFO L87 Difference]: Start difference. First operand 994 states and 1322 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:02,979 INFO L93 Difference]: Finished difference Result 2884 states and 4021 transitions. [2021-12-15 11:37:02,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:02,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-15 11:37:02,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:02,985 INFO L225 Difference]: With dead ends: 2884 [2021-12-15 11:37:02,985 INFO L226 Difference]: Without dead ends: 2726 [2021-12-15 11:37:02,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:37:02,987 INFO L933 BasicCegarLoop]: 758 mSDtfsCounter, 9022 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9022 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 3272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:02,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9022 Valid, 3297 Invalid, 3272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 11:37:02,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2021-12-15 11:37:03,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 999. [2021-12-15 11:37:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 977 states have (on average 1.3582395087001025) internal successors, (1327), 998 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:03,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1327 transitions. [2021-12-15 11:37:03,074 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1327 transitions. Word has length 98 [2021-12-15 11:37:03,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:03,074 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1327 transitions. [2021-12-15 11:37:03,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:03,074 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1327 transitions. [2021-12-15 11:37:03,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-15 11:37:03,076 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:03,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:03,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-15 11:37:03,076 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:03,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:03,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1926953537, now seen corresponding path program 1 times [2021-12-15 11:37:03,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:03,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775126362] [2021-12-15 11:37:03,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:03,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:03,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:03,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:03,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775126362] [2021-12-15 11:37:03,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775126362] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:03,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:03,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:03,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101103100] [2021-12-15 11:37:03,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:03,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:03,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:03,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:03,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:03,182 INFO L87 Difference]: Start difference. First operand 999 states and 1327 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:04,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:04,515 INFO L93 Difference]: Finished difference Result 1918 states and 2597 transitions. [2021-12-15 11:37:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:04,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-15 11:37:04,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:04,518 INFO L225 Difference]: With dead ends: 1918 [2021-12-15 11:37:04,518 INFO L226 Difference]: Without dead ends: 1769 [2021-12-15 11:37:04,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:04,520 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 4213 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 2474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:04,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4213 Valid, 3124 Invalid, 2474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:04,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2021-12-15 11:37:04,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 999. [2021-12-15 11:37:04,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 977 states have (on average 1.3572159672466735) internal successors, (1326), 998 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1326 transitions. [2021-12-15 11:37:04,620 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1326 transitions. Word has length 98 [2021-12-15 11:37:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:04,620 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1326 transitions. [2021-12-15 11:37:04,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1326 transitions. [2021-12-15 11:37:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-15 11:37:04,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:04,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:04,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-15 11:37:04,622 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:04,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:04,623 INFO L85 PathProgramCache]: Analyzing trace with hash -542784863, now seen corresponding path program 1 times [2021-12-15 11:37:04,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:04,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230578015] [2021-12-15 11:37:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:04,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:04,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:04,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230578015] [2021-12-15 11:37:04,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230578015] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:04,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:04,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:04,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570243878] [2021-12-15 11:37:04,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:04,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:04,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:04,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:04,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:04,725 INFO L87 Difference]: Start difference. First operand 999 states and 1326 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:05,937 INFO L93 Difference]: Finished difference Result 1970 states and 2686 transitions. [2021-12-15 11:37:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:05,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-12-15 11:37:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:05,940 INFO L225 Difference]: With dead ends: 1970 [2021-12-15 11:37:05,940 INFO L226 Difference]: Without dead ends: 1812 [2021-12-15 11:37:05,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:05,941 INFO L933 BasicCegarLoop]: 663 mSDtfsCounter, 4167 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4167 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 2572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:05,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4167 Valid, 3481 Invalid, 2572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-12-15 11:37:06,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 999. [2021-12-15 11:37:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 977 states have (on average 1.3561924257932447) internal successors, (1325), 998 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:06,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1325 transitions. [2021-12-15 11:37:06,051 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1325 transitions. Word has length 98 [2021-12-15 11:37:06,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:06,051 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1325 transitions. [2021-12-15 11:37:06,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:06,052 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1325 transitions. [2021-12-15 11:37:06,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:06,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:06,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:06,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-15 11:37:06,053 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:06,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:06,054 INFO L85 PathProgramCache]: Analyzing trace with hash -308070434, now seen corresponding path program 1 times [2021-12-15 11:37:06,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:06,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170290386] [2021-12-15 11:37:06,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:06,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:06,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:06,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170290386] [2021-12-15 11:37:06,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170290386] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:06,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:06,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:06,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662060113] [2021-12-15 11:37:06,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:06,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:06,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:06,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:06,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:06,143 INFO L87 Difference]: Start difference. First operand 999 states and 1325 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:07,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:07,080 INFO L93 Difference]: Finished difference Result 2163 states and 2951 transitions. [2021-12-15 11:37:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:07,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:07,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:07,083 INFO L225 Difference]: With dead ends: 2163 [2021-12-15 11:37:07,083 INFO L226 Difference]: Without dead ends: 1871 [2021-12-15 11:37:07,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:07,085 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 3273 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3273 SdHoareTripleChecker+Valid, 3760 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:07,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3273 Valid, 3760 Invalid, 2547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:37:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2021-12-15 11:37:07,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 999. [2021-12-15 11:37:07,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 977 states have (on average 1.354145342886387) internal successors, (1323), 998 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:07,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1323 transitions. [2021-12-15 11:37:07,175 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1323 transitions. Word has length 99 [2021-12-15 11:37:07,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:07,176 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1323 transitions. [2021-12-15 11:37:07,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:07,176 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1323 transitions. [2021-12-15 11:37:07,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:07,177 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:07,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:07,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-15 11:37:07,178 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:07,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:07,178 INFO L85 PathProgramCache]: Analyzing trace with hash 234210846, now seen corresponding path program 1 times [2021-12-15 11:37:07,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:07,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500682731] [2021-12-15 11:37:07,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:07,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:07,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:07,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:07,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500682731] [2021-12-15 11:37:07,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500682731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:07,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:07,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:07,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930295074] [2021-12-15 11:37:07,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:07,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:07,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:07,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:07,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:07,273 INFO L87 Difference]: Start difference. First operand 999 states and 1323 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:08,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:08,294 INFO L93 Difference]: Finished difference Result 2052 states and 2797 transitions. [2021-12-15 11:37:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:08,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:08,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:08,297 INFO L225 Difference]: With dead ends: 2052 [2021-12-15 11:37:08,298 INFO L226 Difference]: Without dead ends: 1841 [2021-12-15 11:37:08,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:37:08,299 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 4598 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 2256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:08,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4598 Valid, 3269 Invalid, 2256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:37:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2021-12-15 11:37:08,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 999. [2021-12-15 11:37:08,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 977 states have (on average 1.3520982599795293) internal successors, (1321), 998 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:08,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1321 transitions. [2021-12-15 11:37:08,394 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1321 transitions. Word has length 99 [2021-12-15 11:37:08,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:08,395 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1321 transitions. [2021-12-15 11:37:08,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:08,395 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1321 transitions. [2021-12-15 11:37:08,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:08,396 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:08,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:08,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-15 11:37:08,396 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:08,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:08,397 INFO L85 PathProgramCache]: Analyzing trace with hash -271572002, now seen corresponding path program 1 times [2021-12-15 11:37:08,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:08,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797753136] [2021-12-15 11:37:08,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:08,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:08,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:08,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797753136] [2021-12-15 11:37:08,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797753136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:08,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:08,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:08,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959536425] [2021-12-15 11:37:08,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:08,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:08,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:08,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:08,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:08,522 INFO L87 Difference]: Start difference. First operand 999 states and 1321 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:09,743 INFO L93 Difference]: Finished difference Result 1986 states and 2701 transitions. [2021-12-15 11:37:09,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:09,744 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:09,746 INFO L225 Difference]: With dead ends: 1986 [2021-12-15 11:37:09,746 INFO L226 Difference]: Without dead ends: 1812 [2021-12-15 11:37:09,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:09,747 INFO L933 BasicCegarLoop]: 693 mSDtfsCounter, 4110 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4110 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:09,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4110 Valid, 3596 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:09,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-12-15 11:37:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 999. [2021-12-15 11:37:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 977 states have (on average 1.3500511770726715) internal successors, (1319), 998 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:09,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1319 transitions. [2021-12-15 11:37:09,840 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1319 transitions. Word has length 99 [2021-12-15 11:37:09,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:09,840 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1319 transitions. [2021-12-15 11:37:09,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:09,841 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1319 transitions. [2021-12-15 11:37:09,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:09,842 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:09,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:09,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-15 11:37:09,842 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:09,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:09,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1756072034, now seen corresponding path program 1 times [2021-12-15 11:37:09,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:09,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229215073] [2021-12-15 11:37:09,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:09,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:09,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:09,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:09,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229215073] [2021-12-15 11:37:09,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229215073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:09,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:09,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:09,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094121701] [2021-12-15 11:37:09,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:09,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:09,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:09,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:09,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:09,930 INFO L87 Difference]: Start difference. First operand 999 states and 1319 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:10,905 INFO L93 Difference]: Finished difference Result 2038 states and 2772 transitions. [2021-12-15 11:37:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:10,905 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:10,908 INFO L225 Difference]: With dead ends: 2038 [2021-12-15 11:37:10,908 INFO L226 Difference]: Without dead ends: 1841 [2021-12-15 11:37:10,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:10,909 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 4108 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 3535 SdHoareTripleChecker+Invalid, 2506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:10,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4108 Valid, 3535 Invalid, 2506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:37:10,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2021-12-15 11:37:11,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 999. [2021-12-15 11:37:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 977 states have (on average 1.3480040941658138) internal successors, (1317), 998 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1317 transitions. [2021-12-15 11:37:11,028 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1317 transitions. Word has length 99 [2021-12-15 11:37:11,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:11,028 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1317 transitions. [2021-12-15 11:37:11,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1317 transitions. [2021-12-15 11:37:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:11,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:11,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:11,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-15 11:37:11,030 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:11,030 INFO L85 PathProgramCache]: Analyzing trace with hash 786851038, now seen corresponding path program 1 times [2021-12-15 11:37:11,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:11,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151696537] [2021-12-15 11:37:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:11,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:11,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:11,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:11,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151696537] [2021-12-15 11:37:11,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151696537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:11,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:11,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:11,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525570186] [2021-12-15 11:37:11,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:11,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:11,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:11,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:11,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:11,124 INFO L87 Difference]: Start difference. First operand 999 states and 1317 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:12,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:12,076 INFO L93 Difference]: Finished difference Result 1981 states and 2690 transitions. [2021-12-15 11:37:12,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:12,077 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:12,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:12,079 INFO L225 Difference]: With dead ends: 1981 [2021-12-15 11:37:12,079 INFO L226 Difference]: Without dead ends: 1812 [2021-12-15 11:37:12,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:12,081 INFO L933 BasicCegarLoop]: 721 mSDtfsCounter, 4055 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4055 SdHoareTripleChecker+Valid, 3709 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:12,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4055 Valid, 3709 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:37:12,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2021-12-15 11:37:12,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 999. [2021-12-15 11:37:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 977 states have (on average 1.345957011258956) internal successors, (1315), 998 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1315 transitions. [2021-12-15 11:37:12,180 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1315 transitions. Word has length 99 [2021-12-15 11:37:12,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:12,180 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1315 transitions. [2021-12-15 11:37:12,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1315 transitions. [2021-12-15 11:37:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:12,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:12,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:12,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-15 11:37:12,182 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:12,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:12,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1499205730, now seen corresponding path program 1 times [2021-12-15 11:37:12,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:12,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267673743] [2021-12-15 11:37:12,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:12,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:12,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:12,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267673743] [2021-12-15 11:37:12,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267673743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:12,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:12,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:12,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307271708] [2021-12-15 11:37:12,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:12,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:12,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:12,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:12,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:12,344 INFO L87 Difference]: Start difference. First operand 999 states and 1315 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:14,454 INFO L93 Difference]: Finished difference Result 2906 states and 4034 transitions. [2021-12-15 11:37:14,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:14,454 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:14,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:14,459 INFO L225 Difference]: With dead ends: 2906 [2021-12-15 11:37:14,459 INFO L226 Difference]: Without dead ends: 2737 [2021-12-15 11:37:14,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:37:14,461 INFO L933 BasicCegarLoop]: 812 mSDtfsCounter, 6394 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 3268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:14,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6394 Valid, 3616 Invalid, 3268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-15 11:37:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2021-12-15 11:37:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 1009. [2021-12-15 11:37:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 987 states have (on average 1.342451874366768) internal successors, (1325), 1008 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1325 transitions. [2021-12-15 11:37:14,590 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1325 transitions. Word has length 99 [2021-12-15 11:37:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:14,590 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1325 transitions. [2021-12-15 11:37:14,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:14,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1325 transitions. [2021-12-15 11:37:14,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:14,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:14,592 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:14,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-15 11:37:14,593 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:14,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:14,593 INFO L85 PathProgramCache]: Analyzing trace with hash -370973194, now seen corresponding path program 1 times [2021-12-15 11:37:14,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:14,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173730560] [2021-12-15 11:37:14,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:14,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:14,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:14,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:14,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173730560] [2021-12-15 11:37:14,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173730560] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:14,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:14,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:14,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705243864] [2021-12-15 11:37:14,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:14,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:14,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:14,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:14,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:14,706 INFO L87 Difference]: Start difference. First operand 1009 states and 1325 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:15,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:15,943 INFO L93 Difference]: Finished difference Result 1927 states and 2594 transitions. [2021-12-15 11:37:15,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:15,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:15,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:15,946 INFO L225 Difference]: With dead ends: 1927 [2021-12-15 11:37:15,947 INFO L226 Difference]: Without dead ends: 1777 [2021-12-15 11:37:15,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:15,948 INFO L933 BasicCegarLoop]: 631 mSDtfsCounter, 4121 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4121 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:15,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4121 Valid, 3236 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2021-12-15 11:37:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1007. [2021-12-15 11:37:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 985 states have (on average 1.3411167512690356) internal successors, (1321), 1006 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1321 transitions. [2021-12-15 11:37:16,058 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1321 transitions. Word has length 99 [2021-12-15 11:37:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:16,059 INFO L470 AbstractCegarLoop]: Abstraction has 1007 states and 1321 transitions. [2021-12-15 11:37:16,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:16,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1321 transitions. [2021-12-15 11:37:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:16,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:16,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:16,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-15 11:37:16,061 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:16,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:16,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1320721534, now seen corresponding path program 1 times [2021-12-15 11:37:16,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:16,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401398056] [2021-12-15 11:37:16,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:16,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:16,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:16,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401398056] [2021-12-15 11:37:16,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401398056] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:16,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:16,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:16,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711881366] [2021-12-15 11:37:16,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:16,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:16,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:16,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:16,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:16,205 INFO L87 Difference]: Start difference. First operand 1007 states and 1321 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:18,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:18,617 INFO L93 Difference]: Finished difference Result 2890 states and 4008 transitions. [2021-12-15 11:37:18,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:18,618 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:18,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:18,621 INFO L225 Difference]: With dead ends: 2890 [2021-12-15 11:37:18,621 INFO L226 Difference]: Without dead ends: 2728 [2021-12-15 11:37:18,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:37:18,623 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 6390 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6390 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 3235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:18,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6390 Valid, 3580 Invalid, 3235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-15 11:37:18,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2021-12-15 11:37:18,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 1012. [2021-12-15 11:37:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 990 states have (on average 1.3393939393939394) internal successors, (1326), 1011 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1326 transitions. [2021-12-15 11:37:18,773 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1326 transitions. Word has length 99 [2021-12-15 11:37:18,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:18,773 INFO L470 AbstractCegarLoop]: Abstraction has 1012 states and 1326 transitions. [2021-12-15 11:37:18,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:18,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1326 transitions. [2021-12-15 11:37:18,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:18,774 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:18,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:18,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-15 11:37:18,775 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash 193533868, now seen corresponding path program 1 times [2021-12-15 11:37:18,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:18,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864951292] [2021-12-15 11:37:18,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:18,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:18,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:18,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864951292] [2021-12-15 11:37:18,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864951292] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:18,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:18,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:18,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594220961] [2021-12-15 11:37:18,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:18,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:18,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:18,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:18,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:18,892 INFO L87 Difference]: Start difference. First operand 1012 states and 1326 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:20,259 INFO L93 Difference]: Finished difference Result 1930 states and 2595 transitions. [2021-12-15 11:37:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:20,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:20,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:20,261 INFO L225 Difference]: With dead ends: 1930 [2021-12-15 11:37:20,261 INFO L226 Difference]: Without dead ends: 1781 [2021-12-15 11:37:20,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:20,263 INFO L933 BasicCegarLoop]: 631 mSDtfsCounter, 4113 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:20,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4113 Valid, 3236 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2320 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:20,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2021-12-15 11:37:20,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1011. [2021-12-15 11:37:20,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 989 states have (on average 1.3387259858442873) internal successors, (1324), 1010 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1324 transitions. [2021-12-15 11:37:20,377 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1324 transitions. Word has length 99 [2021-12-15 11:37:20,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:20,377 INFO L470 AbstractCegarLoop]: Abstraction has 1011 states and 1324 transitions. [2021-12-15 11:37:20,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:20,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1324 transitions. [2021-12-15 11:37:20,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:20,379 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:20,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:20,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-15 11:37:20,379 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:20,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:20,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1237089452, now seen corresponding path program 1 times [2021-12-15 11:37:20,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:20,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038378806] [2021-12-15 11:37:20,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:20,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:20,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:20,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038378806] [2021-12-15 11:37:20,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038378806] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:20,473 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:20,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:20,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250215832] [2021-12-15 11:37:20,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:20,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:20,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:20,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:20,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:20,474 INFO L87 Difference]: Start difference. First operand 1011 states and 1324 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:21,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:21,764 INFO L93 Difference]: Finished difference Result 1929 states and 2593 transitions. [2021-12-15 11:37:21,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:21,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:21,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:21,766 INFO L225 Difference]: With dead ends: 1929 [2021-12-15 11:37:21,767 INFO L226 Difference]: Without dead ends: 1780 [2021-12-15 11:37:21,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:21,768 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 3996 mSDsluCounter, 2804 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3996 SdHoareTripleChecker+Valid, 3502 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:21,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3996 Valid, 3502 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:21,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2021-12-15 11:37:21,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1010. [2021-12-15 11:37:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1010 states, 988 states have (on average 1.3380566801619433) internal successors, (1322), 1009 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1322 transitions. [2021-12-15 11:37:21,879 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1322 transitions. Word has length 99 [2021-12-15 11:37:21,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:21,880 INFO L470 AbstractCegarLoop]: Abstraction has 1010 states and 1322 transitions. [2021-12-15 11:37:21,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1322 transitions. [2021-12-15 11:37:21,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:21,881 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:21,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:21,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-15 11:37:21,881 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:21,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:21,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1049556564, now seen corresponding path program 1 times [2021-12-15 11:37:21,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:21,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943670683] [2021-12-15 11:37:21,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:21,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:22,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:22,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943670683] [2021-12-15 11:37:22,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943670683] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:22,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:22,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:22,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062754202] [2021-12-15 11:37:22,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:22,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:22,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:22,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:22,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:22,017 INFO L87 Difference]: Start difference. First operand 1010 states and 1322 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:23,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:23,794 INFO L93 Difference]: Finished difference Result 2672 states and 3671 transitions. [2021-12-15 11:37:23,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:23,795 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:23,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:23,798 INFO L225 Difference]: With dead ends: 2672 [2021-12-15 11:37:23,798 INFO L226 Difference]: Without dead ends: 2523 [2021-12-15 11:37:23,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:37:23,799 INFO L933 BasicCegarLoop]: 687 mSDtfsCounter, 7705 mSDsluCounter, 2341 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7705 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 3250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:23,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7705 Valid, 3028 Invalid, 3250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:23,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2021-12-15 11:37:23,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 1015. [2021-12-15 11:37:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 993 states have (on average 1.3363544813695871) internal successors, (1327), 1014 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1327 transitions. [2021-12-15 11:37:23,932 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1327 transitions. Word has length 99 [2021-12-15 11:37:23,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:23,932 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 1327 transitions. [2021-12-15 11:37:23,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:23,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1327 transitions. [2021-12-15 11:37:23,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:23,933 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:23,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:23,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-15 11:37:23,934 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:23,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:23,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1664921314, now seen corresponding path program 1 times [2021-12-15 11:37:23,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:23,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166769724] [2021-12-15 11:37:23,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:23,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:24,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:24,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166769724] [2021-12-15 11:37:24,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166769724] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:24,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:24,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-15 11:37:24,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94301143] [2021-12-15 11:37:24,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:24,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-15 11:37:24,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:24,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-15 11:37:24,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-15 11:37:24,187 INFO L87 Difference]: Start difference. First operand 1015 states and 1327 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:25,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:25,793 INFO L93 Difference]: Finished difference Result 3422 states and 4701 transitions. [2021-12-15 11:37:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-15 11:37:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:25,797 INFO L225 Difference]: With dead ends: 3422 [2021-12-15 11:37:25,798 INFO L226 Difference]: Without dead ends: 3250 [2021-12-15 11:37:25,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2021-12-15 11:37:25,816 INFO L933 BasicCegarLoop]: 1409 mSDtfsCounter, 5929 mSDsluCounter, 10113 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5929 SdHoareTripleChecker+Valid, 11522 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:25,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5929 Valid, 11522 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 11:37:25,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2021-12-15 11:37:25,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 991. [2021-12-15 11:37:25,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3364293085655314) internal successors, (1295), 990 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:25,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1295 transitions. [2021-12-15 11:37:25,981 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1295 transitions. Word has length 99 [2021-12-15 11:37:25,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:25,981 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1295 transitions. [2021-12-15 11:37:25,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:25,981 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1295 transitions. [2021-12-15 11:37:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:25,982 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:25,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:25,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-15 11:37:25,983 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:25,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:25,999 INFO L85 PathProgramCache]: Analyzing trace with hash 29188819, now seen corresponding path program 1 times [2021-12-15 11:37:25,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:25,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131176943] [2021-12-15 11:37:25,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:26,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:26,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:26,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131176943] [2021-12-15 11:37:26,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131176943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:26,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:26,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:26,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960526319] [2021-12-15 11:37:26,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:26,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:26,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:26,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:26,083 INFO L87 Difference]: Start difference. First operand 991 states and 1295 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:27,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:27,446 INFO L93 Difference]: Finished difference Result 1946 states and 2635 transitions. [2021-12-15 11:37:27,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:27,447 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:27,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:27,449 INFO L225 Difference]: With dead ends: 1946 [2021-12-15 11:37:27,449 INFO L226 Difference]: Without dead ends: 1788 [2021-12-15 11:37:27,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:27,450 INFO L933 BasicCegarLoop]: 799 mSDtfsCounter, 3061 mSDsluCounter, 2455 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:27,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3061 Valid, 3254 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:27,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2021-12-15 11:37:27,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 986. [2021-12-15 11:37:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3371369294605808) internal successors, (1289), 985 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1289 transitions. [2021-12-15 11:37:27,586 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1289 transitions. Word has length 99 [2021-12-15 11:37:27,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:27,586 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1289 transitions. [2021-12-15 11:37:27,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1289 transitions. [2021-12-15 11:37:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:27,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:27,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:27,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-15 11:37:27,589 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash -178103298, now seen corresponding path program 1 times [2021-12-15 11:37:27,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:27,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200484816] [2021-12-15 11:37:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:27,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:27,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:27,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200484816] [2021-12-15 11:37:27,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200484816] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:27,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:27,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:27,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053570558] [2021-12-15 11:37:27,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:27,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:27,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:27,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:27,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:27,779 INFO L87 Difference]: Start difference. First operand 986 states and 1289 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:30,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:30,122 INFO L93 Difference]: Finished difference Result 2868 states and 3975 transitions. [2021-12-15 11:37:30,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:30,122 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:30,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:30,125 INFO L225 Difference]: With dead ends: 2868 [2021-12-15 11:37:30,125 INFO L226 Difference]: Without dead ends: 2706 [2021-12-15 11:37:30,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:37:30,126 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 6308 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6308 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 3138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:30,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6308 Valid, 3506 Invalid, 3138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-15 11:37:30,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2021-12-15 11:37:30,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 991. [2021-12-15 11:37:30,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3353973168214655) internal successors, (1294), 990 states have internal predecessors, (1294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:30,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1294 transitions. [2021-12-15 11:37:30,274 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1294 transitions. Word has length 99 [2021-12-15 11:37:30,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:30,274 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1294 transitions. [2021-12-15 11:37:30,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1294 transitions. [2021-12-15 11:37:30,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-15 11:37:30,276 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:30,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:30,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-15 11:37:30,276 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:30,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:30,277 INFO L85 PathProgramCache]: Analyzing trace with hash -679193058, now seen corresponding path program 1 times [2021-12-15 11:37:30,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:30,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593760517] [2021-12-15 11:37:30,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:30,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:30,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:30,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:30,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593760517] [2021-12-15 11:37:30,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593760517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:30,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:30,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:30,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20638956] [2021-12-15 11:37:30,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:30,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:30,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:30,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:30,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:30,355 INFO L87 Difference]: Start difference. First operand 991 states and 1294 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:31,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:31,698 INFO L93 Difference]: Finished difference Result 2023 states and 2731 transitions. [2021-12-15 11:37:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:31,698 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-15 11:37:31,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:31,700 INFO L225 Difference]: With dead ends: 2023 [2021-12-15 11:37:31,700 INFO L226 Difference]: Without dead ends: 1837 [2021-12-15 11:37:31,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:31,702 INFO L933 BasicCegarLoop]: 861 mSDtfsCounter, 3963 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3963 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:31,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3963 Valid, 3463 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:31,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2021-12-15 11:37:31,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 991. [2021-12-15 11:37:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3343653250773995) internal successors, (1293), 990 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:31,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1293 transitions. [2021-12-15 11:37:31,852 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1293 transitions. Word has length 99 [2021-12-15 11:37:31,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:31,852 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1293 transitions. [2021-12-15 11:37:31,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:31,867 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1293 transitions. [2021-12-15 11:37:31,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-15 11:37:31,869 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:31,869 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:31,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-15 11:37:31,869 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:31,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1060069596, now seen corresponding path program 1 times [2021-12-15 11:37:31,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:31,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218309679] [2021-12-15 11:37:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:31,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:32,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:32,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218309679] [2021-12-15 11:37:32,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218309679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:32,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:32,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:32,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777311165] [2021-12-15 11:37:32,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:32,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:32,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:32,015 INFO L87 Difference]: Start difference. First operand 991 states and 1293 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:33,252 INFO L93 Difference]: Finished difference Result 1905 states and 2555 transitions. [2021-12-15 11:37:33,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:33,253 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-15 11:37:33,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:33,255 INFO L225 Difference]: With dead ends: 1905 [2021-12-15 11:37:33,255 INFO L226 Difference]: Without dead ends: 1751 [2021-12-15 11:37:33,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:33,256 INFO L933 BasicCegarLoop]: 617 mSDtfsCounter, 3972 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3972 SdHoareTripleChecker+Valid, 3158 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:33,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3972 Valid, 3158 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:33,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-12-15 11:37:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 991. [2021-12-15 11:37:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3323013415892673) internal successors, (1291), 990 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1291 transitions. [2021-12-15 11:37:33,434 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1291 transitions. Word has length 100 [2021-12-15 11:37:33,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:33,434 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1291 transitions. [2021-12-15 11:37:33,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1291 transitions. [2021-12-15 11:37:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-15 11:37:33,435 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:33,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:33,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-15 11:37:33,437 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:33,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:33,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2105960988, now seen corresponding path program 1 times [2021-12-15 11:37:33,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:33,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962464438] [2021-12-15 11:37:33,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:33,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:33,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:33,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:33,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962464438] [2021-12-15 11:37:33,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962464438] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:33,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:33,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:33,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338664969] [2021-12-15 11:37:33,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:33,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:33,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:33,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:33,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:33,580 INFO L87 Difference]: Start difference. First operand 991 states and 1291 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:34,971 INFO L93 Difference]: Finished difference Result 1905 states and 2553 transitions. [2021-12-15 11:37:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:34,971 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-12-15 11:37:34,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:34,974 INFO L225 Difference]: With dead ends: 1905 [2021-12-15 11:37:34,974 INFO L226 Difference]: Without dead ends: 1751 [2021-12-15 11:37:34,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:34,975 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 3968 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3968 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:34,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3968 Valid, 3162 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2231 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:34,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-12-15 11:37:35,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 991. [2021-12-15 11:37:35,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.330237358101135) internal successors, (1289), 990 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:35,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1289 transitions. [2021-12-15 11:37:35,130 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1289 transitions. Word has length 100 [2021-12-15 11:37:35,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:35,130 INFO L470 AbstractCegarLoop]: Abstraction has 991 states and 1289 transitions. [2021-12-15 11:37:35,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1289 transitions. [2021-12-15 11:37:35,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-15 11:37:35,132 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:35,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:35,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-15 11:37:35,132 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:35,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:35,133 INFO L85 PathProgramCache]: Analyzing trace with hash -41033476, now seen corresponding path program 1 times [2021-12-15 11:37:35,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:35,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801895898] [2021-12-15 11:37:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:35,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:35,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:35,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:35,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801895898] [2021-12-15 11:37:35,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801895898] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:35,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:35,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:35,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689512296] [2021-12-15 11:37:35,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:35,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:35,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:35,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:35,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:35,224 INFO L87 Difference]: Start difference. First operand 991 states and 1289 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)