./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.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.UNBOUNDED.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf3e653d470f38ca10e6f2ef710928478301c2e1b39e054d852fd4b90e26a334 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:36:50,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:36:50,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:36:50,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:36:50,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:36:50,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:36:50,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:36:50,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:36:50,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:36:50,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:36:50,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:36:50,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:36:50,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:36:50,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:36:50,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:36:50,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:36:50,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:36:50,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:36:50,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:36:50,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:36:50,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:36:50,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:36:50,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:36:50,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:36:50,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:36:50,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:36:50,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:36:50,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:36:50,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:36:50,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:36:50,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:36:50,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:36:50,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:36:50,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:36:50,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:36:50,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:36:50,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:36:50,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:36:50,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:36:50,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:36:50,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:36:50,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:36:50,530 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:36:50,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:36:50,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:36:50,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:36:50,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:36:50,532 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:36:50,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:36:50,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:36:50,532 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:36:50,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:36:50,533 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:36:50,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:36:50,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:36:50,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:36:50,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:36:50,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:36:50,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:36:50,534 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:36:50,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:36:50,534 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:36:50,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:36:50,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:36:50,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:36:50,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:36:50,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:36:50,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:36:50,535 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:36:50,535 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:36:50,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:36:50,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:36:50,536 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:36:50,536 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:36:50,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:36:50,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:36:50,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf3e653d470f38ca10e6f2ef710928478301c2e1b39e054d852fd4b90e26a334 [2021-12-15 11:36:50,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:36:50,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:36:50,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:36:50,755 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:36:50,756 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:36:50,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-15 11:36:50,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d242e521/3470b63235d44f16a3afca8f137a7d42/FLAG53c068235 [2021-12-15 11:36:51,411 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:36:51,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-15 11:36:51,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d242e521/3470b63235d44f16a3afca8f137a7d42/FLAG53c068235 [2021-12-15 11:36:51,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d242e521/3470b63235d44f16a3afca8f137a7d42 [2021-12-15 11:36:51,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:36:51,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:36:51,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:36:51,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:36:51,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:36:51,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:36:51" (1/1) ... [2021-12-15 11:36:51,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56adf34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:51, skipping insertion in model container [2021-12-15 11:36:51,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:36:51" (1/1) ... [2021-12-15 11:36:51,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:36:51,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:36:52,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69564,69577] [2021-12-15 11:36:52,337 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.UNBOUNDED.pals.c.v+sep-reducer.c[101232,101245] [2021-12-15 11:36:52,386 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.UNBOUNDED.pals.c.v+sep-reducer.c[117050,117063] [2021-12-15 11:36:52,407 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.UNBOUNDED.pals.c.v+sep-reducer.c[124955,124968] [2021-12-15 11:36:52,420 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.UNBOUNDED.pals.c.v+sep-reducer.c[128881,128894] [2021-12-15 11:36:52,428 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.UNBOUNDED.pals.c.v+sep-reducer.c[132623,132636] [2021-12-15 11:36:52,486 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.UNBOUNDED.pals.c.v+sep-reducer.c[163781,163794] [2021-12-15 11:36:52,511 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.UNBOUNDED.pals.c.v+sep-reducer.c[179384,179397] [2021-12-15 11:36:52,533 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.UNBOUNDED.pals.c.v+sep-reducer.c[187284,187297] [2021-12-15 11:36:52,543 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.UNBOUNDED.pals.c.v+sep-reducer.c[191205,191218] [2021-12-15 11:36:52,550 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.UNBOUNDED.pals.c.v+sep-reducer.c[194942,194955] [2021-12-15 11:36:52,576 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[211727,211740] [2021-12-15 11:36:52,589 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.UNBOUNDED.pals.c.v+sep-reducer.c[219627,219640] [2021-12-15 11:36:52,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223548,223561] [2021-12-15 11:36:52,602 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.UNBOUNDED.pals.c.v+sep-reducer.c[227285,227298] [2021-12-15 11:36:52,610 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.UNBOUNDED.pals.c.v+sep-reducer.c[231785,231798] [2021-12-15 11:36:52,616 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.UNBOUNDED.pals.c.v+sep-reducer.c[235573,235586] [2021-12-15 11:36:52,623 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.UNBOUNDED.pals.c.v+sep-reducer.c[239494,239507] [2021-12-15 11:36:52,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[243231,243244] [2021-12-15 11:36:52,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[247352,247365] [2021-12-15 11:36:52,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[251105,251118] [2021-12-15 11:36:52,650 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.UNBOUNDED.pals.c.v+sep-reducer.c[255022,255035] [2021-12-15 11:36:52,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:36:52,687 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:36:52,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[69564,69577] [2021-12-15 11:36:52,922 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.UNBOUNDED.pals.c.v+sep-reducer.c[101232,101245] [2021-12-15 11:36:52,944 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.UNBOUNDED.pals.c.v+sep-reducer.c[117050,117063] [2021-12-15 11:36:52,956 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.UNBOUNDED.pals.c.v+sep-reducer.c[124955,124968] [2021-12-15 11:36:52,962 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.UNBOUNDED.pals.c.v+sep-reducer.c[128881,128894] [2021-12-15 11:36:52,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[132623,132636] [2021-12-15 11:36:53,036 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.UNBOUNDED.pals.c.v+sep-reducer.c[163781,163794] [2021-12-15 11:36:53,057 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.UNBOUNDED.pals.c.v+sep-reducer.c[179384,179397] [2021-12-15 11:36:53,069 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.UNBOUNDED.pals.c.v+sep-reducer.c[187284,187297] [2021-12-15 11:36:53,076 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.UNBOUNDED.pals.c.v+sep-reducer.c[191205,191218] [2021-12-15 11:36:53,082 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.UNBOUNDED.pals.c.v+sep-reducer.c[194942,194955] [2021-12-15 11:36:53,105 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.UNBOUNDED.pals.c.v+sep-reducer.c[211727,211740] [2021-12-15 11:36:53,116 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.UNBOUNDED.pals.c.v+sep-reducer.c[219627,219640] [2021-12-15 11:36:53,122 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.UNBOUNDED.pals.c.v+sep-reducer.c[223548,223561] [2021-12-15 11:36:53,128 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.UNBOUNDED.pals.c.v+sep-reducer.c[227285,227298] [2021-12-15 11:36:53,134 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.UNBOUNDED.pals.c.v+sep-reducer.c[231785,231798] [2021-12-15 11:36:53,140 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.UNBOUNDED.pals.c.v+sep-reducer.c[235573,235586] [2021-12-15 11:36:53,146 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.UNBOUNDED.pals.c.v+sep-reducer.c[239494,239507] [2021-12-15 11:36:53,152 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.UNBOUNDED.pals.c.v+sep-reducer.c[243231,243244] [2021-12-15 11:36:53,158 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.UNBOUNDED.pals.c.v+sep-reducer.c[247352,247365] [2021-12-15 11:36:53,164 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.UNBOUNDED.pals.c.v+sep-reducer.c[251105,251118] [2021-12-15 11:36:53,170 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.UNBOUNDED.pals.c.v+sep-reducer.c[255022,255035] [2021-12-15 11:36:53,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:36:53,209 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:36:53,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53 WrapperNode [2021-12-15 11:36:53,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:36:53,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:36:53,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:36:53,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:36:53,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,416 INFO L137 Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11488 [2021-12-15 11:36:53,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:36:53,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:36:53,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:36:53,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:36:53,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:36:53,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:36:53,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:36:53,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:36:53,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (1/1) ... [2021-12-15 11:36:53,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:36:53,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:36:53,609 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 11:36:53,629 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 11:36:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:36:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:36:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:36:53,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:36:53,918 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:36:53,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:36:56,998 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:36:57,031 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:36:57,031 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:36:57,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:36:57 BoogieIcfgContainer [2021-12-15 11:36:57,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:36:57,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:36:57,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:36:57,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:36:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:36:51" (1/3) ... [2021-12-15 11:36:57,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad2d1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:36:57, skipping insertion in model container [2021-12-15 11:36:57,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:36:53" (2/3) ... [2021-12-15 11:36:57,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad2d1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:36:57, skipping insertion in model container [2021-12-15 11:36:57,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:36:57" (3/3) ... [2021-12-15 11:36:57,040 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-15 11:36:57,045 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:36:57,045 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2021-12-15 11:36:57,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:36:57,114 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 11:36:57,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2021-12-15 11:36:57,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 2348 states, 2325 states have (on average 1.821505376344086) internal successors, (4235), 2347 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:57,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-15 11:36:57,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:57,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:57,244 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:57,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:57,298 INFO L85 PathProgramCache]: Analyzing trace with hash 945954769, now seen corresponding path program 1 times [2021-12-15 11:36:57,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:57,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047989597] [2021-12-15 11:36:57,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:57,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:57,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:36:57,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:57,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047989597] [2021-12-15 11:36:57,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047989597] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:57,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:57,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:57,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095937887] [2021-12-15 11:36:57,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:57,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:57,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:57,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:57,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:57,662 INFO L87 Difference]: Start difference. First operand has 2348 states, 2325 states have (on average 1.821505376344086) internal successors, (4235), 2347 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:58,714 INFO L93 Difference]: Finished difference Result 2546 states and 4528 transitions. [2021-12-15 11:36:58,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:36:58,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-15 11:36:58,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:58,731 INFO L225 Difference]: With dead ends: 2546 [2021-12-15 11:36:58,731 INFO L226 Difference]: Without dead ends: 1401 [2021-12-15 11:36:58,737 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 11:36:58,739 INFO L933 BasicCegarLoop]: 1367 mSDtfsCounter, 7221 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7221 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:58,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7221 Valid, 1445 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:36:58,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2021-12-15 11:36:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1401. [2021-12-15 11:36:58,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1379 states have (on average 1.3038433647570704) internal successors, (1798), 1400 states have internal predecessors, (1798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:58,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1798 transitions. [2021-12-15 11:36:58,839 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1798 transitions. Word has length 86 [2021-12-15 11:36:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:58,840 INFO L470 AbstractCegarLoop]: Abstraction has 1401 states and 1798 transitions. [2021-12-15 11:36:58,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:58,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1798 transitions. [2021-12-15 11:36:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-15 11:36:58,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:58,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:58,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:36:58,847 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:36:58,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:58,851 INFO L85 PathProgramCache]: Analyzing trace with hash -340795257, now seen corresponding path program 1 times [2021-12-15 11:36:58,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:58,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453000995] [2021-12-15 11:36:58,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:58,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:58,960 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 11:36:58,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:58,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453000995] [2021-12-15 11:36:58,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453000995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:58,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:58,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:58,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486205841] [2021-12-15 11:36:58,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:58,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:58,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:58,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:58,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:58,965 INFO L87 Difference]: Start difference. First operand 1401 states and 1798 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:59,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:36:59,514 INFO L93 Difference]: Finished difference Result 1672 states and 2149 transitions. [2021-12-15 11:36:59,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:36:59,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-15 11:36:59,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:36:59,517 INFO L225 Difference]: With dead ends: 1672 [2021-12-15 11:36:59,517 INFO L226 Difference]: Without dead ends: 969 [2021-12-15 11:36:59,518 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 11:36:59,519 INFO L933 BasicCegarLoop]: 626 mSDtfsCounter, 3649 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:36:59,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3649 Valid, 654 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 11:36:59,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2021-12-15 11:36:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2021-12-15 11:36:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 947 states have (on average 1.3231256599788808) internal successors, (1253), 968 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1253 transitions. [2021-12-15 11:36:59,542 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1253 transitions. Word has length 86 [2021-12-15 11:36:59,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:36:59,543 INFO L470 AbstractCegarLoop]: Abstraction has 969 states and 1253 transitions. [2021-12-15 11:36:59,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:36:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1253 transitions. [2021-12-15 11:36:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-15 11:36:59,545 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:36:59,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:36:59,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 11:36:59,546 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 11:36:59,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:36:59,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1383981291, now seen corresponding path program 1 times [2021-12-15 11:36:59,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:36:59,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812507267] [2021-12-15 11:36:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:36:59,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:36:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:36:59,619 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 11:36:59,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:36:59,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812507267] [2021-12-15 11:36:59,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812507267] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:36:59,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:36:59,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:36:59,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239578663] [2021-12-15 11:36:59,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:36:59,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:36:59,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:36:59,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:36:59,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:36:59,622 INFO L87 Difference]: Start difference. First operand 969 states and 1253 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:00,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:00,221 INFO L93 Difference]: Finished difference Result 1742 states and 2296 transitions. [2021-12-15 11:37:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:00,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-15 11:37:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:00,226 INFO L225 Difference]: With dead ends: 1742 [2021-12-15 11:37:00,226 INFO L226 Difference]: Without dead ends: 1227 [2021-12-15 11:37:00,227 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 11:37:00,228 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 4267 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4267 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:00,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4267 Valid, 860 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 11:37:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2021-12-15 11:37:00,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1147. [2021-12-15 11:37:00,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1125 states have (on average 1.3884444444444444) internal successors, (1562), 1146 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states 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 11:37:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1562 transitions. [2021-12-15 11:37:00,267 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1562 transitions. Word has length 86 [2021-12-15 11:37:00,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:00,268 INFO L470 AbstractCegarLoop]: Abstraction has 1147 states and 1562 transitions. [2021-12-15 11:37:00,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1562 transitions. [2021-12-15 11:37:00,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-15 11:37:00,270 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:00,270 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 11:37:00,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 11:37:00,271 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 11:37:00,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:00,272 INFO L85 PathProgramCache]: Analyzing trace with hash -100915319, now seen corresponding path program 1 times [2021-12-15 11:37:00,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:00,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114240848] [2021-12-15 11:37:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:00,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:00,434 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 11:37:00,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:00,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114240848] [2021-12-15 11:37:00,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114240848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:00,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:00,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:00,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254687178] [2021-12-15 11:37:00,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:00,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:00,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:00,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:00,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:00,436 INFO L87 Difference]: Start difference. First operand 1147 states and 1562 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 11:37:00,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:00,876 INFO L93 Difference]: Finished difference Result 1614 states and 2208 transitions. [2021-12-15 11:37:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:00,876 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 11:37:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:00,880 INFO L225 Difference]: With dead ends: 1614 [2021-12-15 11:37:00,880 INFO L226 Difference]: Without dead ends: 1115 [2021-12-15 11:37:00,881 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 11:37:00,882 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 2961 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2961 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:00,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2961 Valid, 497 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 11:37:00,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2021-12-15 11:37:00,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2021-12-15 11:37:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1093 states have (on average 1.3943275388838061) internal successors, (1524), 1114 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states 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 11:37:00,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1524 transitions. [2021-12-15 11:37:00,952 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1524 transitions. Word has length 87 [2021-12-15 11:37:00,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:00,953 INFO L470 AbstractCegarLoop]: Abstraction has 1115 states and 1524 transitions. [2021-12-15 11:37:00,953 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 11:37:00,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1524 transitions. [2021-12-15 11:37:00,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-15 11:37:00,956 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:00,956 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] [2021-12-15 11:37:00,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 11:37:00,957 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 11:37:00,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash 523148810, now seen corresponding path program 1 times [2021-12-15 11:37:00,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:00,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618881358] [2021-12-15 11:37:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:00,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:01,018 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 11:37:01,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:01,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618881358] [2021-12-15 11:37:01,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618881358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:01,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:01,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:01,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415324225] [2021-12-15 11:37:01,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:01,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:01,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:01,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:01,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:01,022 INFO L87 Difference]: Start difference. First operand 1115 states and 1524 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:01,398 INFO L93 Difference]: Finished difference Result 1621 states and 2225 transitions. [2021-12-15 11:37:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:01,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-12-15 11:37:01,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:01,401 INFO L225 Difference]: With dead ends: 1621 [2021-12-15 11:37:01,401 INFO L226 Difference]: Without dead ends: 1006 [2021-12-15 11:37:01,402 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 11:37:01,403 INFO L933 BasicCegarLoop]: 506 mSDtfsCounter, 2769 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:01,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2769 Valid, 518 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 11:37:01,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-12-15 11:37:01,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 1006. [2021-12-15 11:37:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 984 states have (on average 1.4095528455284554) internal successors, (1387), 1005 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 11:37:01,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1387 transitions. [2021-12-15 11:37:01,431 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1387 transitions. Word has length 88 [2021-12-15 11:37:01,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:01,431 INFO L470 AbstractCegarLoop]: Abstraction has 1006 states and 1387 transitions. [2021-12-15 11:37:01,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:01,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1387 transitions. [2021-12-15 11:37:01,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-15 11:37:01,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:01,433 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 11:37:01,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 11:37:01,433 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:01,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:01,434 INFO L85 PathProgramCache]: Analyzing trace with hash 951882838, now seen corresponding path program 1 times [2021-12-15 11:37:01,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:01,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763522423] [2021-12-15 11:37:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:01,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:01,500 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 11:37:01,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:01,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763522423] [2021-12-15 11:37:01,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763522423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:01,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:01,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 11:37:01,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324685479] [2021-12-15 11:37:01,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:01,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 11:37:01,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:01,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 11:37:01,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 11:37:01,502 INFO L87 Difference]: Start difference. First operand 1006 states and 1387 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 11:37:01,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:01,815 INFO L93 Difference]: Finished difference Result 1464 states and 2020 transitions. [2021-12-15 11:37:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 11:37:01,816 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 11:37:01,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:01,819 INFO L225 Difference]: With dead ends: 1464 [2021-12-15 11:37:01,819 INFO L226 Difference]: Without dead ends: 905 [2021-12-15 11:37:01,820 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 11:37:01,820 INFO L933 BasicCegarLoop]: 470 mSDtfsCounter, 2470 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:01,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2470 Valid, 490 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 11:37:01,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2021-12-15 11:37:01,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 905. [2021-12-15 11:37:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4190260475651189) internal successors, (1253), 904 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1253 transitions. [2021-12-15 11:37:01,863 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1253 transitions. Word has length 89 [2021-12-15 11:37:01,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:01,863 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1253 transitions. [2021-12-15 11:37:01,863 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 11:37:01,863 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1253 transitions. [2021-12-15 11:37:01,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-15 11:37:01,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:01,865 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] [2021-12-15 11:37:01,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 11:37:01,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:01,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1223915583, now seen corresponding path program 1 times [2021-12-15 11:37:01,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:01,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848211238] [2021-12-15 11:37:01,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:01,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:02,057 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 11:37:02,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:02,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848211238] [2021-12-15 11:37:02,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848211238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:02,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:02,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:02,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813318977] [2021-12-15 11:37:02,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:02,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:02,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:02,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:02,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:02,059 INFO L87 Difference]: Start difference. First operand 905 states and 1253 transitions. Second operand has 12 states, 12 states have (on average 7.5) internal successors, (90), 11 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:03,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:03,429 INFO L93 Difference]: Finished difference Result 1900 states and 2663 transitions. [2021-12-15 11:37:03,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-15 11:37:03,429 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 11 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-12-15 11:37:03,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:03,434 INFO L225 Difference]: With dead ends: 1900 [2021-12-15 11:37:03,434 INFO L226 Difference]: Without dead ends: 1742 [2021-12-15 11:37:03,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-15 11:37:03,436 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 6059 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6059 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:03,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6059 Valid, 3188 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2821 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-15 11:37:03,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2021-12-15 11:37:03,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 918. [2021-12-15 11:37:03,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.4196428571428572) internal successors, (1272), 917 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 11:37:03,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1272 transitions. [2021-12-15 11:37:03,472 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1272 transitions. Word has length 90 [2021-12-15 11:37:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:03,472 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1272 transitions. [2021-12-15 11:37:03,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 11 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1272 transitions. [2021-12-15 11:37:03,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-15 11:37:03,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:03,474 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] [2021-12-15 11:37:03,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 11:37:03,475 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:03,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:03,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1880581433, now seen corresponding path program 1 times [2021-12-15 11:37:03,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:03,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644460316] [2021-12-15 11:37:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:03,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:03,608 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 11:37:03,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:03,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644460316] [2021-12-15 11:37:03,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644460316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:03,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:03,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:03,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975681987] [2021-12-15 11:37:03,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:03,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:03,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:03,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:03,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:03,611 INFO L87 Difference]: Start difference. First operand 918 states and 1272 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:04,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:04,635 INFO L93 Difference]: Finished difference Result 1743 states and 2438 transitions. [2021-12-15 11:37:04,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:04,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-12-15 11:37:04,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:04,640 INFO L225 Difference]: With dead ends: 1743 [2021-12-15 11:37:04,640 INFO L226 Difference]: Without dead ends: 1479 [2021-12-15 11:37:04,641 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 11:37:04,642 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 5400 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5400 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:04,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5400 Valid, 2123 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:04,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2021-12-15 11:37:04,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 905. [2021-12-15 11:37:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4178935447338619) internal successors, (1252), 904 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states 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 11:37:04,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1252 transitions. [2021-12-15 11:37:04,681 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1252 transitions. Word has length 90 [2021-12-15 11:37:04,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:04,681 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1252 transitions. [2021-12-15 11:37:04,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:04,682 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1252 transitions. [2021-12-15 11:37:04,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-15 11:37:04,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:04,683 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] [2021-12-15 11:37:04,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 11:37:04,684 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:04,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:04,684 INFO L85 PathProgramCache]: Analyzing trace with hash -774148364, now seen corresponding path program 1 times [2021-12-15 11:37:04,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:04,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902344798] [2021-12-15 11:37:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:04,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 11:37:04,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:04,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902344798] [2021-12-15 11:37:04,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902344798] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:04,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:04,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:04,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808496697] [2021-12-15 11:37:04,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:04,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:04,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:04,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:04,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:04,802 INFO L87 Difference]: Start difference. First operand 905 states and 1252 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:05,894 INFO L93 Difference]: Finished difference Result 1922 states and 2721 transitions. [2021-12-15 11:37:05,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:05,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-12-15 11:37:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:05,899 INFO L225 Difference]: With dead ends: 1922 [2021-12-15 11:37:05,899 INFO L226 Difference]: Without dead ends: 1726 [2021-12-15 11:37:05,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:37:05,902 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 4726 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 2085 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4726 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 2130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:05,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4726 Valid, 2584 Invalid, 2130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2085 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:05,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2021-12-15 11:37:05,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 905. [2021-12-15 11:37:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4167610419026047) internal successors, (1251), 904 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states 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 11:37:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1251 transitions. [2021-12-15 11:37:05,938 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1251 transitions. Word has length 90 [2021-12-15 11:37:05,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:05,938 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1251 transitions. [2021-12-15 11:37:05,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1251 transitions. [2021-12-15 11:37:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-15 11:37:05,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:05,940 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] [2021-12-15 11:37:05,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 11:37:05,941 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:05,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:05,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1127184379, now seen corresponding path program 1 times [2021-12-15 11:37:05,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:05,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902289331] [2021-12-15 11:37:05,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:05,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:06,031 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 11:37:06,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:06,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902289331] [2021-12-15 11:37:06,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902289331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:06,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:06,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-15 11:37:06,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123041886] [2021-12-15 11:37:06,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:06,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 11:37:06,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:06,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 11:37:06,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-15 11:37:06,033 INFO L87 Difference]: Start difference. First operand 905 states and 1251 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:06,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:06,665 INFO L93 Difference]: Finished difference Result 1644 states and 2216 transitions. [2021-12-15 11:37:06,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-15 11:37:06,666 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-12-15 11:37:06,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:06,669 INFO L225 Difference]: With dead ends: 1644 [2021-12-15 11:37:06,669 INFO L226 Difference]: Without dead ends: 1226 [2021-12-15 11:37:06,670 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 11:37:06,671 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 3789 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3789 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:06,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3789 Valid, 1024 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 11:37:06,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2021-12-15 11:37:06,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 905. [2021-12-15 11:37:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4156285390713477) internal successors, (1250), 904 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states 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 11:37:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1250 transitions. [2021-12-15 11:37:06,711 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1250 transitions. Word has length 90 [2021-12-15 11:37:06,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:06,712 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1250 transitions. [2021-12-15 11:37:06,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:06,712 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1250 transitions. [2021-12-15 11:37:06,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:06,713 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:06,714 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] [2021-12-15 11:37:06,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 11:37:06,714 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:06,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:06,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1374831072, now seen corresponding path program 1 times [2021-12-15 11:37:06,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:06,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010870161] [2021-12-15 11:37:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:06,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:06,806 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 11:37:06,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:06,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010870161] [2021-12-15 11:37:06,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010870161] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:06,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:06,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:06,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442425283] [2021-12-15 11:37:06,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:06,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:06,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:06,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:06,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:06,809 INFO L87 Difference]: Start difference. First operand 905 states and 1250 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:07,830 INFO L93 Difference]: Finished difference Result 1889 states and 2664 transitions. [2021-12-15 11:37:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:07,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:07,835 INFO L225 Difference]: With dead ends: 1889 [2021-12-15 11:37:07,835 INFO L226 Difference]: Without dead ends: 1699 [2021-12-15 11:37:07,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:37:07,837 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 4789 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4789 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 2044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:07,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4789 Valid, 2412 Invalid, 2044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:07,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-12-15 11:37:07,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2021-12-15 11:37:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4133635334088335) internal successors, (1248), 904 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states 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 11:37:07,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1248 transitions. [2021-12-15 11:37:07,883 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1248 transitions. Word has length 92 [2021-12-15 11:37:07,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:07,884 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1248 transitions. [2021-12-15 11:37:07,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1248 transitions. [2021-12-15 11:37:07,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:07,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:07,886 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] [2021-12-15 11:37:07,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 11:37:07,886 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:07,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:07,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1581467239, now seen corresponding path program 1 times [2021-12-15 11:37:07,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:07,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774389174] [2021-12-15 11:37:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:07,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:07,978 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 11:37:07,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:07,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774389174] [2021-12-15 11:37:07,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774389174] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:07,979 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:07,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:07,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48270997] [2021-12-15 11:37:07,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:07,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:07,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:07,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:07,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:07,981 INFO L87 Difference]: Start difference. First operand 905 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:09,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:09,011 INFO L93 Difference]: Finished difference Result 1970 states and 2780 transitions. [2021-12-15 11:37:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:09,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:09,016 INFO L225 Difference]: With dead ends: 1970 [2021-12-15 11:37:09,016 INFO L226 Difference]: Without dead ends: 1726 [2021-12-15 11:37:09,017 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 11:37:09,017 INFO L933 BasicCegarLoop]: 628 mSDtfsCounter, 4664 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 2116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:09,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4664 Valid, 2619 Invalid, 2116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:09,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2021-12-15 11:37:09,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 905. [2021-12-15 11:37:09,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4110985277463193) internal successors, (1246), 904 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 11:37:09,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1246 transitions. [2021-12-15 11:37:09,062 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1246 transitions. Word has length 92 [2021-12-15 11:37:09,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:09,062 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1246 transitions. [2021-12-15 11:37:09,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:09,062 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1246 transitions. [2021-12-15 11:37:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:09,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:09,064 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] [2021-12-15 11:37:09,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 11:37:09,064 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:09,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:09,065 INFO L85 PathProgramCache]: Analyzing trace with hash 510204798, now seen corresponding path program 1 times [2021-12-15 11:37:09,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:09,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632161028] [2021-12-15 11:37:09,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:09,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:09,196 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 11:37:09,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:09,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632161028] [2021-12-15 11:37:09,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632161028] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:09,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:09,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:09,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731729398] [2021-12-15 11:37:09,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:09,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:09,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:09,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:09,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:09,198 INFO L87 Difference]: Start difference. First operand 905 states and 1246 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:10,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:10,382 INFO L93 Difference]: Finished difference Result 1967 states and 2743 transitions. [2021-12-15 11:37:10,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-15 11:37:10,383 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:10,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:10,387 INFO L225 Difference]: With dead ends: 1967 [2021-12-15 11:37:10,387 INFO L226 Difference]: Without dead ends: 1797 [2021-12-15 11:37:10,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-12-15 11:37:10,388 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 2964 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2964 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 2489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:10,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2964 Valid, 2928 Invalid, 2489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:10,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2021-12-15 11:37:10,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 931. [2021-12-15 11:37:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 931 states, 909 states have (on average 1.4125412541254125) internal successors, (1284), 930 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states 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 11:37:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1284 transitions. [2021-12-15 11:37:10,435 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1284 transitions. Word has length 92 [2021-12-15 11:37:10,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:10,435 INFO L470 AbstractCegarLoop]: Abstraction has 931 states and 1284 transitions. [2021-12-15 11:37:10,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:10,436 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1284 transitions. [2021-12-15 11:37:10,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:10,437 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:10,437 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] [2021-12-15 11:37:10,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 11:37:10,437 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:10,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:10,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1121549979, now seen corresponding path program 1 times [2021-12-15 11:37:10,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:10,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239081082] [2021-12-15 11:37:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:10,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:10,522 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 11:37:10,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:10,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239081082] [2021-12-15 11:37:10,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239081082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:10,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:10,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:10,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233058727] [2021-12-15 11:37:10,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:10,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:10,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:10,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:10,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:10,524 INFO L87 Difference]: Start difference. First operand 931 states and 1284 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:11,291 INFO L93 Difference]: Finished difference Result 1532 states and 2147 transitions. [2021-12-15 11:37:11,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-15 11:37:11,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:11,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:11,294 INFO L225 Difference]: With dead ends: 1532 [2021-12-15 11:37:11,294 INFO L226 Difference]: Without dead ends: 1132 [2021-12-15 11:37:11,295 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 11:37:11,295 INFO L933 BasicCegarLoop]: 538 mSDtfsCounter, 4165 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4165 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:11,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4165 Valid, 2070 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-15 11:37:11,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-12-15 11:37:11,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 905. [2021-12-15 11:37:11,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4088335220838053) internal successors, (1244), 904 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 11:37:11,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1244 transitions. [2021-12-15 11:37:11,340 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1244 transitions. Word has length 92 [2021-12-15 11:37:11,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:11,340 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1244 transitions. [2021-12-15 11:37:11,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:11,341 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1244 transitions. [2021-12-15 11:37:11,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:11,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:11,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:11,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 11:37:11,342 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 11:37:11,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash -496473703, now seen corresponding path program 1 times [2021-12-15 11:37:11,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:11,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466732782] [2021-12-15 11:37:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:11,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:11,504 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 11:37:11,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:11,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466732782] [2021-12-15 11:37:11,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466732782] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:11,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:11,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:11,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442117341] [2021-12-15 11:37:11,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:11,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:11,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:11,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:11,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:11,507 INFO L87 Difference]: Start difference. First operand 905 states and 1244 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:13,718 INFO L93 Difference]: Finished difference Result 2935 states and 4207 transitions. [2021-12-15 11:37:13,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:13,718 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:13,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:13,725 INFO L225 Difference]: With dead ends: 2935 [2021-12-15 11:37:13,725 INFO L226 Difference]: Without dead ends: 2764 [2021-12-15 11:37:13,726 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 11:37:13,727 INFO L933 BasicCegarLoop]: 732 mSDtfsCounter, 8054 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 3328 mSolverCounterSat, 699 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8054 SdHoareTripleChecker+Valid, 3941 SdHoareTripleChecker+Invalid, 4027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 3328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:13,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8054 Valid, 3941 Invalid, 4027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 3328 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-15 11:37:13,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2021-12-15 11:37:13,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 909. [2021-12-15 11:37:13,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.406989853438557) internal successors, (1248), 908 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states 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 11:37:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1248 transitions. [2021-12-15 11:37:13,806 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1248 transitions. Word has length 92 [2021-12-15 11:37:13,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:13,806 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1248 transitions. [2021-12-15 11:37:13,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:13,806 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1248 transitions. [2021-12-15 11:37:13,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:13,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:13,808 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] [2021-12-15 11:37:13,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 11:37:13,808 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 11:37:13,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:13,809 INFO L85 PathProgramCache]: Analyzing trace with hash 2138746040, now seen corresponding path program 1 times [2021-12-15 11:37:13,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:13,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229845686] [2021-12-15 11:37:13,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:13,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:13,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:13,918 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 11:37:13,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:13,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229845686] [2021-12-15 11:37:13,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229845686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:13,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:13,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:13,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169499890] [2021-12-15 11:37:13,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:13,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:13,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:13,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:13,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:13,922 INFO L87 Difference]: Start difference. First operand 909 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:14,977 INFO L93 Difference]: Finished difference Result 1865 states and 2625 transitions. [2021-12-15 11:37:14,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:14,978 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:14,982 INFO L225 Difference]: With dead ends: 1865 [2021-12-15 11:37:14,982 INFO L226 Difference]: Without dead ends: 1699 [2021-12-15 11:37:14,983 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 11:37:14,983 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 4680 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 2033 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4680 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:14,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4680 Valid, 2491 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2033 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:14,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-12-15 11:37:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 909. [2021-12-15 11:37:15,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.4058624577226606) internal successors, (1247), 908 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states 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 11:37:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1247 transitions. [2021-12-15 11:37:15,041 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1247 transitions. Word has length 92 [2021-12-15 11:37:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:15,041 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1247 transitions. [2021-12-15 11:37:15,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1247 transitions. [2021-12-15 11:37:15,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:15,042 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:15,043 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] [2021-12-15 11:37:15,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 11:37:15,043 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:15,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:15,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1951823708, now seen corresponding path program 1 times [2021-12-15 11:37:15,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:15,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663225320] [2021-12-15 11:37:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:15,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:15,128 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 11:37:15,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:15,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663225320] [2021-12-15 11:37:15,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663225320] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:15,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:15,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:15,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813656976] [2021-12-15 11:37:15,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:15,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:15,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:15,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:15,130 INFO L87 Difference]: Start difference. First operand 909 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:16,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:16,176 INFO L93 Difference]: Finished difference Result 1870 states and 2629 transitions. [2021-12-15 11:37:16,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:16,176 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:16,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:16,180 INFO L225 Difference]: With dead ends: 1870 [2021-12-15 11:37:16,181 INFO L226 Difference]: Without dead ends: 1699 [2021-12-15 11:37:16,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-12-15 11:37:16,182 INFO L933 BasicCegarLoop]: 596 mSDtfsCounter, 4629 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4629 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:16,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4629 Valid, 2521 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:16,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-12-15 11:37:16,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 909. [2021-12-15 11:37:16,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.4047350620067645) internal successors, (1246), 908 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states 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 11:37:16,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1246 transitions. [2021-12-15 11:37:16,239 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1246 transitions. Word has length 92 [2021-12-15 11:37:16,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:16,239 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1246 transitions. [2021-12-15 11:37:16,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:16,239 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1246 transitions. [2021-12-15 11:37:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:16,241 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:16,241 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] [2021-12-15 11:37:16,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 11:37:16,241 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:16,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:16,241 INFO L85 PathProgramCache]: Analyzing trace with hash -761353428, now seen corresponding path program 1 times [2021-12-15 11:37:16,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:16,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817513505] [2021-12-15 11:37:16,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:16,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:16,317 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 11:37:16,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:16,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817513505] [2021-12-15 11:37:16,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817513505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:16,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:16,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:16,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25544669] [2021-12-15 11:37:16,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:16,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:16,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:16,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:16,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:16,319 INFO L87 Difference]: Start difference. First operand 909 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:17,277 INFO L93 Difference]: Finished difference Result 1782 states and 2478 transitions. [2021-12-15 11:37:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:17,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:17,282 INFO L225 Difference]: With dead ends: 1782 [2021-12-15 11:37:17,282 INFO L226 Difference]: Without dead ends: 1631 [2021-12-15 11:37:17,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:17,283 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 3534 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3534 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:17,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3534 Valid, 2112 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-15 11:37:17,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2021-12-15 11:37:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 909. [2021-12-15 11:37:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.403607666290868) internal successors, (1245), 908 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states 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 11:37:17,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1245 transitions. [2021-12-15 11:37:17,344 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1245 transitions. Word has length 92 [2021-12-15 11:37:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:17,344 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1245 transitions. [2021-12-15 11:37:17,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1245 transitions. [2021-12-15 11:37:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-15 11:37:17,346 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:17,346 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] [2021-12-15 11:37:17,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 11:37:17,346 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:17,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:17,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1774714757, now seen corresponding path program 1 times [2021-12-15 11:37:17,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:17,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227546552] [2021-12-15 11:37:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:17,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:17,500 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 11:37:17,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:17,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227546552] [2021-12-15 11:37:17,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227546552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:17,500 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:17,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:17,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849934823] [2021-12-15 11:37:17,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:17,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:17,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:17,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:17,502 INFO L87 Difference]: Start difference. First operand 909 states and 1245 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:20,045 INFO L93 Difference]: Finished difference Result 3204 states and 4592 transitions. [2021-12-15 11:37:20,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:20,046 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-12-15 11:37:20,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:20,050 INFO L225 Difference]: With dead ends: 3204 [2021-12-15 11:37:20,051 INFO L226 Difference]: Without dead ends: 2994 [2021-12-15 11:37:20,051 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 11:37:20,052 INFO L933 BasicCegarLoop]: 1094 mSDtfsCounter, 5528 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 3933 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5528 SdHoareTripleChecker+Valid, 4653 SdHoareTripleChecker+Invalid, 4408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 3933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:20,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5528 Valid, 4653 Invalid, 4408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 3933 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-15 11:37:20,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2994 states. [2021-12-15 11:37:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2994 to 913. [2021-12-15 11:37:20,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.4017957351290684) internal successors, (1249), 912 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states 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 11:37:20,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1249 transitions. [2021-12-15 11:37:20,128 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1249 transitions. Word has length 92 [2021-12-15 11:37:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:20,128 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1249 transitions. [2021-12-15 11:37:20,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:20,128 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1249 transitions. [2021-12-15 11:37:20,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:20,130 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:20,130 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 11:37:20,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 11:37:20,130 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:20,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:20,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1675755005, now seen corresponding path program 1 times [2021-12-15 11:37:20,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:20,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189134630] [2021-12-15 11:37:20,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:20,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:20,212 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 11:37:20,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:20,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189134630] [2021-12-15 11:37:20,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189134630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:20,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:20,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:20,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441090465] [2021-12-15 11:37:20,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:20,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:20,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:20,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:20,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:20,215 INFO L87 Difference]: Start difference. First operand 913 states and 1249 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 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 11:37:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:21,397 INFO L93 Difference]: Finished difference Result 1940 states and 2724 transitions. [2021-12-15 11:37:21,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:21,398 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 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 11:37:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:21,401 INFO L225 Difference]: With dead ends: 1940 [2021-12-15 11:37:21,401 INFO L226 Difference]: Without dead ends: 1730 [2021-12-15 11:37:21,401 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 11:37:21,402 INFO L933 BasicCegarLoop]: 849 mSDtfsCounter, 2880 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 2626 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 2654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:21,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2880 Valid, 3322 Invalid, 2654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2626 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-15 11:37:21,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2021-12-15 11:37:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 909. [2021-12-15 11:37:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.4024802705749717) internal successors, (1244), 908 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 11:37:21,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1244 transitions. [2021-12-15 11:37:21,476 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1244 transitions. Word has length 93 [2021-12-15 11:37:21,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:21,476 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1244 transitions. [2021-12-15 11:37:21,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 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 11:37:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1244 transitions. [2021-12-15 11:37:21,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 11:37:21,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:21,478 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 11:37:21,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 11:37:21,478 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:21,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:21,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2061707208, now seen corresponding path program 1 times [2021-12-15 11:37:21,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:21,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071043392] [2021-12-15 11:37:21,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:21,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:21,555 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 11:37:21,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:21,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071043392] [2021-12-15 11:37:21,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071043392] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:21,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:21,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:21,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680568085] [2021-12-15 11:37:21,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:21,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:21,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:21,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:21,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:21,557 INFO L87 Difference]: Start difference. First operand 909 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 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 11:37:22,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:22,671 INFO L93 Difference]: Finished difference Result 1870 states and 2624 transitions. [2021-12-15 11:37:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:22,672 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 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 11:37:22,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:22,674 INFO L225 Difference]: With dead ends: 1870 [2021-12-15 11:37:22,674 INFO L226 Difference]: Without dead ends: 1699 [2021-12-15 11:37:22,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-15 11:37:22,676 INFO L933 BasicCegarLoop]: 722 mSDtfsCounter, 3354 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 2296 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3354 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:22,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3354 Valid, 2865 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2296 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:22,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-12-15 11:37:22,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2021-12-15 11:37:22,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.40317100792752) internal successors, (1239), 904 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states 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 11:37:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1239 transitions. [2021-12-15 11:37:22,751 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1239 transitions. Word has length 93 [2021-12-15 11:37:22,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:22,751 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1239 transitions. [2021-12-15 11:37:22,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 8 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 11:37:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1239 transitions. [2021-12-15 11:37:22,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:22,753 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:22,753 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] [2021-12-15 11:37:22,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 11:37:22,753 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:22,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1776369767, now seen corresponding path program 1 times [2021-12-15 11:37:22,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:22,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612731487] [2021-12-15 11:37:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:22,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:22,856 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 11:37:22,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:22,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612731487] [2021-12-15 11:37:22,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612731487] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:22,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:22,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:22,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018774825] [2021-12-15 11:37:22,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:22,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:22,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:22,859 INFO L87 Difference]: Start difference. First operand 905 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:24,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:24,002 INFO L93 Difference]: Finished difference Result 1901 states and 2665 transitions. [2021-12-15 11:37:24,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:24,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:24,006 INFO L225 Difference]: With dead ends: 1901 [2021-12-15 11:37:24,006 INFO L226 Difference]: Without dead ends: 1699 [2021-12-15 11:37:24,006 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 11:37:24,007 INFO L933 BasicCegarLoop]: 615 mSDtfsCounter, 4649 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4649 SdHoareTripleChecker+Valid, 2635 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:24,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4649 Valid, 2635 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:24,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-12-15 11:37:24,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 905. [2021-12-15 11:37:24,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.4009060022650057) internal successors, (1237), 904 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states 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 11:37:24,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1237 transitions. [2021-12-15 11:37:24,086 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1237 transitions. Word has length 94 [2021-12-15 11:37:24,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:24,086 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1237 transitions. [2021-12-15 11:37:24,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:24,086 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1237 transitions. [2021-12-15 11:37:24,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:24,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:24,087 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] [2021-12-15 11:37:24,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-15 11:37:24,088 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:24,088 INFO L85 PathProgramCache]: Analyzing trace with hash -583554037, now seen corresponding path program 1 times [2021-12-15 11:37:24,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:24,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844932799] [2021-12-15 11:37:24,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:24,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:24,173 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 11:37:24,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:24,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844932799] [2021-12-15 11:37:24,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844932799] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:24,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:24,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:24,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690616411] [2021-12-15 11:37:24,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:24,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:24,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:24,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:24,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:24,175 INFO L87 Difference]: Start difference. First operand 905 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:25,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:25,284 INFO L93 Difference]: Finished difference Result 1843 states and 2576 transitions. [2021-12-15 11:37:25,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:25,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:25,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:25,287 INFO L225 Difference]: With dead ends: 1843 [2021-12-15 11:37:25,287 INFO L226 Difference]: Without dead ends: 1675 [2021-12-15 11:37:25,297 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 11:37:25,297 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 3279 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:25,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3279 Valid, 2601 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:25,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2021-12-15 11:37:25,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 905. [2021-12-15 11:37:25,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 905 states, 883 states have (on average 1.3986409966024915) internal successors, (1235), 904 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states 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 11:37:25,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1235 transitions. [2021-12-15 11:37:25,375 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1235 transitions. Word has length 94 [2021-12-15 11:37:25,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:25,375 INFO L470 AbstractCegarLoop]: Abstraction has 905 states and 1235 transitions. [2021-12-15 11:37:25,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:25,375 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1235 transitions. [2021-12-15 11:37:25,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:25,376 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:25,376 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] [2021-12-15 11:37:25,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-15 11:37:25,377 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:25,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:25,377 INFO L85 PathProgramCache]: Analyzing trace with hash -912166993, now seen corresponding path program 1 times [2021-12-15 11:37:25,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:25,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881889929] [2021-12-15 11:37:25,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:25,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:25,514 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 11:37:25,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:25,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881889929] [2021-12-15 11:37:25,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881889929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:25,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:25,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:25,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893561912] [2021-12-15 11:37:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:25,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:25,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:25,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:25,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:25,517 INFO L87 Difference]: Start difference. First operand 905 states and 1235 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:28,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:28,336 INFO L93 Difference]: Finished difference Result 3332 states and 4755 transitions. [2021-12-15 11:37:28,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:28,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:28,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:28,340 INFO L225 Difference]: With dead ends: 3332 [2021-12-15 11:37:28,340 INFO L226 Difference]: Without dead ends: 3056 [2021-12-15 11:37:28,341 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 11:37:28,342 INFO L933 BasicCegarLoop]: 1106 mSDtfsCounter, 5444 mSDsluCounter, 4637 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5444 SdHoareTripleChecker+Valid, 5743 SdHoareTripleChecker+Invalid, 5251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:28,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5444 Valid, 5743 Invalid, 5251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-15 11:37:28,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2021-12-15 11:37:28,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 913. [2021-12-15 11:37:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3950617283950617) internal successors, (1243), 912 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states 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 11:37:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1243 transitions. [2021-12-15 11:37:28,429 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1243 transitions. Word has length 94 [2021-12-15 11:37:28,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:28,429 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1243 transitions. [2021-12-15 11:37:28,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1243 transitions. [2021-12-15 11:37:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:28,430 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:28,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:28,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-15 11:37:28,430 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:28,431 INFO L85 PathProgramCache]: Analyzing trace with hash 108575604, now seen corresponding path program 1 times [2021-12-15 11:37:28,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:28,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556979533] [2021-12-15 11:37:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:28,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:28,516 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 11:37:28,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:28,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556979533] [2021-12-15 11:37:28,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556979533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:28,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:28,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:28,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919890091] [2021-12-15 11:37:28,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:28,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:28,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:28,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:28,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:28,518 INFO L87 Difference]: Start difference. First operand 913 states and 1243 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:29,601 INFO L93 Difference]: Finished difference Result 1847 states and 2576 transitions. [2021-12-15 11:37:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:29,602 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:29,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:29,604 INFO L225 Difference]: With dead ends: 1847 [2021-12-15 11:37:29,605 INFO L226 Difference]: Without dead ends: 1683 [2021-12-15 11:37:29,605 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 11:37:29,606 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 2242 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 2109 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:29,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2242 Valid, 2603 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:29,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2021-12-15 11:37:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 913. [2021-12-15 11:37:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.3928170594837261) internal successors, (1241), 912 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states 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 11:37:29,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1241 transitions. [2021-12-15 11:37:29,691 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1241 transitions. Word has length 94 [2021-12-15 11:37:29,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:29,692 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1241 transitions. [2021-12-15 11:37:29,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:29,692 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1241 transitions. [2021-12-15 11:37:29,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:29,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:29,693 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] [2021-12-15 11:37:29,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-15 11:37:29,693 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:29,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:29,694 INFO L85 PathProgramCache]: Analyzing trace with hash -905490814, now seen corresponding path program 1 times [2021-12-15 11:37:29,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:29,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642429211] [2021-12-15 11:37:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:29,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:29,822 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 11:37:29,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:29,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642429211] [2021-12-15 11:37:29,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642429211] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:29,823 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:29,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:29,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882874581] [2021-12-15 11:37:29,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:29,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:29,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:29,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:29,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:29,824 INFO L87 Difference]: Start difference. First operand 913 states and 1241 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:32,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:32,257 INFO L93 Difference]: Finished difference Result 2981 states and 4246 transitions. [2021-12-15 11:37:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:32,258 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:32,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:32,261 INFO L225 Difference]: With dead ends: 2981 [2021-12-15 11:37:32,262 INFO L226 Difference]: Without dead ends: 2791 [2021-12-15 11:37:32,263 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 11:37:32,263 INFO L933 BasicCegarLoop]: 788 mSDtfsCounter, 7367 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 3490 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7367 SdHoareTripleChecker+Valid, 4245 SdHoareTripleChecker+Invalid, 4136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 3490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:32,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7367 Valid, 4245 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 3490 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-15 11:37:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2021-12-15 11:37:32,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 921. [2021-12-15 11:37:32,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.389321468298109) internal successors, (1249), 920 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states 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 11:37:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1249 transitions. [2021-12-15 11:37:32,356 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1249 transitions. Word has length 94 [2021-12-15 11:37:32,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:32,357 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1249 transitions. [2021-12-15 11:37:32,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1249 transitions. [2021-12-15 11:37:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:32,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:32,358 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] [2021-12-15 11:37:32,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-15 11:37:32,358 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1059388859, now seen corresponding path program 1 times [2021-12-15 11:37:32,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:32,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905387821] [2021-12-15 11:37:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:32,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:32,463 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 11:37:32,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:32,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905387821] [2021-12-15 11:37:32,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905387821] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:32,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:32,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:32,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54356613] [2021-12-15 11:37:32,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:32,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:32,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:32,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:32,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:32,465 INFO L87 Difference]: Start difference. First operand 921 states and 1249 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:33,614 INFO L93 Difference]: Finished difference Result 1855 states and 2582 transitions. [2021-12-15 11:37:33,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:33,614 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:33,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:33,617 INFO L225 Difference]: With dead ends: 1855 [2021-12-15 11:37:33,617 INFO L226 Difference]: Without dead ends: 1691 [2021-12-15 11:37:33,618 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 11:37:33,618 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 4193 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4193 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:33,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4193 Valid, 2761 Invalid, 2367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-12-15 11:37:33,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 921. [2021-12-15 11:37:33,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3870967741935485) internal successors, (1247), 920 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states 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 11:37:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1247 transitions. [2021-12-15 11:37:33,709 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1247 transitions. Word has length 94 [2021-12-15 11:37:33,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:33,709 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1247 transitions. [2021-12-15 11:37:33,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:33,709 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1247 transitions. [2021-12-15 11:37:33,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:33,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:33,710 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] [2021-12-15 11:37:33,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-15 11:37:33,711 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:33,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:33,711 INFO L85 PathProgramCache]: Analyzing trace with hash 389206872, now seen corresponding path program 1 times [2021-12-15 11:37:33,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:33,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393747358] [2021-12-15 11:37:33,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:33,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:33,783 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 11:37:33,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:33,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393747358] [2021-12-15 11:37:33,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393747358] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:33,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:33,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:33,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820134413] [2021-12-15 11:37:33,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:33,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:33,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:33,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:33,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:33,785 INFO L87 Difference]: Start difference. First operand 921 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:34,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:34,906 INFO L93 Difference]: Finished difference Result 1853 states and 2577 transitions. [2021-12-15 11:37:34,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:34,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:34,909 INFO L225 Difference]: With dead ends: 1853 [2021-12-15 11:37:34,909 INFO L226 Difference]: Without dead ends: 1691 [2021-12-15 11:37:34,910 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 11:37:34,910 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 4295 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4295 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:34,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4295 Valid, 2606 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:34,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-12-15 11:37:34,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 921. [2021-12-15 11:37:34,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3848720800889878) internal successors, (1245), 920 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states 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 11:37:35,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1245 transitions. [2021-12-15 11:37:35,000 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1245 transitions. Word has length 94 [2021-12-15 11:37:35,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:35,000 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1245 transitions. [2021-12-15 11:37:35,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:35,000 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1245 transitions. [2021-12-15 11:37:35,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:35,001 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:35,002 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] [2021-12-15 11:37:35,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-15 11:37:35,002 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:35,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash -66481708, now seen corresponding path program 1 times [2021-12-15 11:37:35,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:35,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570295582] [2021-12-15 11:37:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:35,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:35,071 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 11:37:35,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:35,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570295582] [2021-12-15 11:37:35,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570295582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:35,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:35,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:35,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886659477] [2021-12-15 11:37:35,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:35,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:35,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:35,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:35,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:35,073 INFO L87 Difference]: Start difference. First operand 921 states and 1245 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:36,208 INFO L93 Difference]: Finished difference Result 1849 states and 2567 transitions. [2021-12-15 11:37:36,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:36,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:36,217 INFO L225 Difference]: With dead ends: 1849 [2021-12-15 11:37:36,217 INFO L226 Difference]: Without dead ends: 1691 [2021-12-15 11:37:36,218 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 11:37:36,222 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 2129 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:36,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2129 Valid, 2761 Invalid, 2293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:36,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-12-15 11:37:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 921. [2021-12-15 11:37:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3837597330367075) internal successors, (1244), 920 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 11:37:36,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1244 transitions. [2021-12-15 11:37:36,319 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1244 transitions. Word has length 94 [2021-12-15 11:37:36,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:36,320 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1244 transitions. [2021-12-15 11:37:36,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:36,320 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1244 transitions. [2021-12-15 11:37:36,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:36,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:36,321 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] [2021-12-15 11:37:36,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-15 11:37:36,321 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:36,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1010519460, now seen corresponding path program 1 times [2021-12-15 11:37:36,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:36,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468190824] [2021-12-15 11:37:36,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:36,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:36,390 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 11:37:36,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:36,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468190824] [2021-12-15 11:37:36,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468190824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:36,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:36,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:36,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437238857] [2021-12-15 11:37:36,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:36,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:36,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:36,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:36,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:36,394 INFO L87 Difference]: Start difference. First operand 921 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:37,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:37,550 INFO L93 Difference]: Finished difference Result 1845 states and 2562 transitions. [2021-12-15 11:37:37,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:37,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:37,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:37,553 INFO L225 Difference]: With dead ends: 1845 [2021-12-15 11:37:37,553 INFO L226 Difference]: Without dead ends: 1691 [2021-12-15 11:37:37,553 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 11:37:37,554 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 2580 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2580 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 2350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:37,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2580 Valid, 2808 Invalid, 2350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2273 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:37,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-12-15 11:37:37,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 921. [2021-12-15 11:37:37,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.382647385984427) internal successors, (1243), 920 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states 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 11:37:37,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1243 transitions. [2021-12-15 11:37:37,646 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1243 transitions. Word has length 94 [2021-12-15 11:37:37,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:37,647 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1243 transitions. [2021-12-15 11:37:37,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:37,647 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1243 transitions. [2021-12-15 11:37:37,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:37,648 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:37,648 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] [2021-12-15 11:37:37,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-15 11:37:37,648 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 11:37:37,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:37,648 INFO L85 PathProgramCache]: Analyzing trace with hash -4191139, now seen corresponding path program 1 times [2021-12-15 11:37:37,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:37,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774653000] [2021-12-15 11:37:37,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:37,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:37,717 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 11:37:37,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:37,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774653000] [2021-12-15 11:37:37,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774653000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:37,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:37,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:37,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389763583] [2021-12-15 11:37:37,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:37,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:37,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:37,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:37,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:37,719 INFO L87 Difference]: Start difference. First operand 921 states and 1243 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:38,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:38,886 INFO L93 Difference]: Finished difference Result 1845 states and 2561 transitions. [2021-12-15 11:37:38,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:38,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:38,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:38,889 INFO L225 Difference]: With dead ends: 1845 [2021-12-15 11:37:38,889 INFO L226 Difference]: Without dead ends: 1691 [2021-12-15 11:37:38,889 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 11:37:38,890 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 2498 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 2941 SdHoareTripleChecker+Invalid, 2485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:38,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2498 Valid, 2941 Invalid, 2485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:38,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-12-15 11:37:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 921. [2021-12-15 11:37:38,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3815350389321468) internal successors, (1242), 920 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states 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 11:37:38,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1242 transitions. [2021-12-15 11:37:38,987 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1242 transitions. Word has length 94 [2021-12-15 11:37:38,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:38,988 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1242 transitions. [2021-12-15 11:37:38,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:38,988 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1242 transitions. [2021-12-15 11:37:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:38,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:38,989 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] [2021-12-15 11:37:38,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-15 11:37:38,989 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:38,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:38,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1834155361, now seen corresponding path program 1 times [2021-12-15 11:37:38,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:38,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513463140] [2021-12-15 11:37:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:38,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:39,063 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 11:37:39,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:39,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513463140] [2021-12-15 11:37:39,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513463140] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:39,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:39,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:39,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18756541] [2021-12-15 11:37:39,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:39,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:39,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:39,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:39,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:39,067 INFO L87 Difference]: Start difference. First operand 921 states and 1242 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:40,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:40,199 INFO L93 Difference]: Finished difference Result 1849 states and 2563 transitions. [2021-12-15 11:37:40,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:40,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:40,201 INFO L225 Difference]: With dead ends: 1849 [2021-12-15 11:37:40,201 INFO L226 Difference]: Without dead ends: 1691 [2021-12-15 11:37:40,201 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 11:37:40,202 INFO L933 BasicCegarLoop]: 678 mSDtfsCounter, 3147 mSDsluCounter, 2079 mSDsCounter, 0 mSdLazyCounter, 2213 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 2757 SdHoareTripleChecker+Invalid, 2304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:40,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3147 Valid, 2757 Invalid, 2304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2213 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:40,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-12-15 11:37:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 921. [2021-12-15 11:37:40,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3804226918798665) internal successors, (1241), 920 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states 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 11:37:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1241 transitions. [2021-12-15 11:37:40,297 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1241 transitions. Word has length 94 [2021-12-15 11:37:40,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:40,297 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1241 transitions. [2021-12-15 11:37:40,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1241 transitions. [2021-12-15 11:37:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:40,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:40,299 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] [2021-12-15 11:37:40,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-15 11:37:40,299 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 11:37:40,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:40,299 INFO L85 PathProgramCache]: Analyzing trace with hash -472603347, now seen corresponding path program 1 times [2021-12-15 11:37:40,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:40,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798952551] [2021-12-15 11:37:40,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:40,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:40,376 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 11:37:40,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:40,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798952551] [2021-12-15 11:37:40,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798952551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:40,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:40,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:40,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101759956] [2021-12-15 11:37:40,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:40,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:40,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:40,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:40,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:40,378 INFO L87 Difference]: Start difference. First operand 921 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:41,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:41,491 INFO L93 Difference]: Finished difference Result 1845 states and 2557 transitions. [2021-12-15 11:37:41,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:41,491 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:41,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:41,493 INFO L225 Difference]: With dead ends: 1845 [2021-12-15 11:37:41,493 INFO L226 Difference]: Without dead ends: 1691 [2021-12-15 11:37:41,494 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 11:37:41,494 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 4274 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4274 SdHoareTripleChecker+Valid, 2605 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:41,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4274 Valid, 2605 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:41,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2021-12-15 11:37:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 921. [2021-12-15 11:37:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 899 states have (on average 1.3793103448275863) internal successors, (1240), 920 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states 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 11:37:41,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1240 transitions. [2021-12-15 11:37:41,592 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1240 transitions. Word has length 94 [2021-12-15 11:37:41,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:41,592 INFO L470 AbstractCegarLoop]: Abstraction has 921 states and 1240 transitions. [2021-12-15 11:37:41,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1240 transitions. [2021-12-15 11:37:41,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:41,593 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:41,593 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] [2021-12-15 11:37:41,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-15 11:37:41,593 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:41,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:41,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1148206016, now seen corresponding path program 1 times [2021-12-15 11:37:41,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:41,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743512691] [2021-12-15 11:37:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:41,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:41,717 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 11:37:41,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:41,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743512691] [2021-12-15 11:37:41,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743512691] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:41,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:41,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 11:37:41,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648826685] [2021-12-15 11:37:41,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:41,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 11:37:41,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:41,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 11:37:41,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-15 11:37:41,719 INFO L87 Difference]: Start difference. First operand 921 states and 1240 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:44,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:44,013 INFO L93 Difference]: Finished difference Result 2961 states and 4203 transitions. [2021-12-15 11:37:44,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 11:37:44,013 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:44,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:44,016 INFO L225 Difference]: With dead ends: 2961 [2021-12-15 11:37:44,016 INFO L226 Difference]: Without dead ends: 2781 [2021-12-15 11:37:44,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-12-15 11:37:44,017 INFO L933 BasicCegarLoop]: 766 mSDtfsCounter, 8477 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 2632 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8477 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 3320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 2632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:44,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8477 Valid, 3287 Invalid, 3320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 2632 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-15 11:37:44,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2021-12-15 11:37:44,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 925. [2021-12-15 11:37:44,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3776301218161684) internal successors, (1244), 924 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states 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 11:37:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1244 transitions. [2021-12-15 11:37:44,121 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1244 transitions. Word has length 94 [2021-12-15 11:37:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:44,122 INFO L470 AbstractCegarLoop]: Abstraction has 925 states and 1244 transitions. [2021-12-15 11:37:44,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1244 transitions. [2021-12-15 11:37:44,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 11:37:44,123 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:44,123 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] [2021-12-15 11:37:44,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-15 11:37:44,123 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:44,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:44,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1262668072, now seen corresponding path program 1 times [2021-12-15 11:37:44,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:44,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652590448] [2021-12-15 11:37:44,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:44,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:44,203 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 11:37:44,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:44,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652590448] [2021-12-15 11:37:44,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652590448] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:44,203 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:44,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:44,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658606763] [2021-12-15 11:37:44,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:44,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:44,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:44,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:44,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:44,205 INFO L87 Difference]: Start difference. First operand 925 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:45,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:45,338 INFO L93 Difference]: Finished difference Result 1853 states and 2564 transitions. [2021-12-15 11:37:45,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:45,339 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 11:37:45,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:45,341 INFO L225 Difference]: With dead ends: 1853 [2021-12-15 11:37:45,341 INFO L226 Difference]: Without dead ends: 1695 [2021-12-15 11:37:45,341 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 11:37:45,342 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 2671 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2671 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 2138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:45,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2671 Valid, 2601 Invalid, 2138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:45,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2021-12-15 11:37:45,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 925. [2021-12-15 11:37:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 903 states have (on average 1.3765227021040976) internal successors, (1243), 924 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states 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 11:37:45,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1243 transitions. [2021-12-15 11:37:45,452 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1243 transitions. Word has length 94 [2021-12-15 11:37:45,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:45,453 INFO L470 AbstractCegarLoop]: Abstraction has 925 states and 1243 transitions. [2021-12-15 11:37:45,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 11:37:45,453 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1243 transitions. [2021-12-15 11:37:45,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:45,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:45,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:37:45,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-15 11:37:45,454 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:45,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:45,455 INFO L85 PathProgramCache]: Analyzing trace with hash -748154859, now seen corresponding path program 1 times [2021-12-15 11:37:45,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:45,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167513331] [2021-12-15 11:37:45,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:45,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:45,542 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 11:37:45,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:45,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167513331] [2021-12-15 11:37:45,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167513331] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:45,543 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:45,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:45,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777860423] [2021-12-15 11:37:45,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:45,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:45,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:45,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:45,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:45,545 INFO L87 Difference]: Start difference. First operand 925 states and 1243 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 11:37:46,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:46,719 INFO L93 Difference]: Finished difference Result 2018 states and 2798 transitions. [2021-12-15 11:37:46,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:46,719 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 11:37:46,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:46,721 INFO L225 Difference]: With dead ends: 2018 [2021-12-15 11:37:46,722 INFO L226 Difference]: Without dead ends: 1742 [2021-12-15 11:37:46,722 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 11:37:46,723 INFO L933 BasicCegarLoop]: 802 mSDtfsCounter, 2100 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:46,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2100 Valid, 3102 Invalid, 2365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:46,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2021-12-15 11:37:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 917. [2021-12-15 11:37:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 895 states have (on average 1.3776536312849161) internal successors, (1233), 916 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states 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 11:37:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1233 transitions. [2021-12-15 11:37:46,836 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1233 transitions. Word has length 95 [2021-12-15 11:37:46,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:46,836 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1233 transitions. [2021-12-15 11:37:46,836 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 11:37:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1233 transitions. [2021-12-15 11:37:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:46,838 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:46,838 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 11:37:46,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-15 11:37:46,838 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:46,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:46,839 INFO L85 PathProgramCache]: Analyzing trace with hash 946965281, now seen corresponding path program 1 times [2021-12-15 11:37:46,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:46,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421603705] [2021-12-15 11:37:46,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:46,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:46,909 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 11:37:46,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:46,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421603705] [2021-12-15 11:37:46,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421603705] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:46,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:46,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:46,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008719697] [2021-12-15 11:37:46,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:46,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:46,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:46,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:46,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:46,911 INFO L87 Difference]: Start difference. First operand 917 states and 1233 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 11:37:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 11:37:48,119 INFO L93 Difference]: Finished difference Result 1889 states and 2620 transitions. [2021-12-15 11:37:48,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-15 11:37:48,119 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 11:37:48,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 11:37:48,121 INFO L225 Difference]: With dead ends: 1889 [2021-12-15 11:37:48,121 INFO L226 Difference]: Without dead ends: 1699 [2021-12-15 11:37:48,121 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 11:37:48,122 INFO L933 BasicCegarLoop]: 757 mSDtfsCounter, 2997 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 2399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-15 11:37:48,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2997 Valid, 3044 Invalid, 2399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2349 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-15 11:37:48,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2021-12-15 11:37:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 909. [2021-12-15 11:37:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 887 states have (on average 1.3788049605411499) internal successors, (1223), 908 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states 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 11:37:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1223 transitions. [2021-12-15 11:37:48,226 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1223 transitions. Word has length 95 [2021-12-15 11:37:48,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 11:37:48,226 INFO L470 AbstractCegarLoop]: Abstraction has 909 states and 1223 transitions. [2021-12-15 11:37:48,226 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 11:37:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1223 transitions. [2021-12-15 11:37:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-15 11:37:48,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:37:48,227 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 11:37:48,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-15 11:37:48,228 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2021-12-15 11:37:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:37:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1778839813, now seen corresponding path program 1 times [2021-12-15 11:37:48,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:37:48,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729418343] [2021-12-15 11:37:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:37:48,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:37:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 11:37:48,305 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 11:37:48,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 11:37:48,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729418343] [2021-12-15 11:37:48,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729418343] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 11:37:48,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 11:37:48,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 11:37:48,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771095394] [2021-12-15 11:37:48,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 11:37:48,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 11:37:48,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 11:37:48,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 11:37:48,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-15 11:37:48,307 INFO L87 Difference]: Start difference. First operand 909 states and 1223 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)