./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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.4.1.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 297d4f7e6fe1324d357f4812a6556f1cd58caa692e4601779e6f52e2ab17fbf7 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 15:17:33,570 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 15:17:33,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 15:17:33,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 15:17:33,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 15:17:33,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 15:17:33,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 15:17:33,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 15:17:33,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 15:17:33,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 15:17:33,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 15:17:33,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 15:17:33,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 15:17:33,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 15:17:33,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 15:17:33,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 15:17:33,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 15:17:33,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 15:17:33,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 15:17:33,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 15:17:33,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 15:17:33,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 15:17:33,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 15:17:33,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 15:17:33,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 15:17:33,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 15:17:33,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 15:17:33,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 15:17:33,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 15:17:33,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 15:17:33,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 15:17:33,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 15:17:33,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 15:17:33,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 15:17:33,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 15:17:33,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 15:17:33,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 15:17:33,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 15:17:33,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 15:17:33,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 15:17:33,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 15:17:33,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 15:17:33,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 15:17:33,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 15:17:33,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 15:17:33,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 15:17:33,667 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 15:17:33,668 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 15:17:33,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 15:17:33,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 15:17:33,668 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 15:17:33,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 15:17:33,669 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 15:17:33,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 15:17:33,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 15:17:33,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 15:17:33,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 15:17:33,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 15:17:33,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 15:17:33,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 15:17:33,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 15:17:33,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 15:17:33,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 15:17:33,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 15:17:33,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 15:17:33,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 15:17:33,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:17:33,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 15:17:33,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 15:17:33,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 15:17:33,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 15:17:33,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 15:17:33,672 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 15:17:33,673 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 15:17:33,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 15:17:33,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 15:17:33,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 297d4f7e6fe1324d357f4812a6556f1cd58caa692e4601779e6f52e2ab17fbf7 [2021-12-14 15:17:33,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 15:17:33,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 15:17:33,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 15:17:33,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 15:17:33,874 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 15:17:33,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-14 15:17:33,918 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b4d0d982/6da9acaa88a44410a86feb1257e17f4f/FLAG83969d977 [2021-12-14 15:17:34,374 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 15:17:34,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-14 15:17:34,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b4d0d982/6da9acaa88a44410a86feb1257e17f4f/FLAG83969d977 [2021-12-14 15:17:34,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b4d0d982/6da9acaa88a44410a86feb1257e17f4f [2021-12-14 15:17:34,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 15:17:34,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 15:17:34,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 15:17:34,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 15:17:34,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 15:17:34,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:17:34" (1/1) ... [2021-12-14 15:17:34,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a4c540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:34, skipping insertion in model container [2021-12-14 15:17:34,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:17:34" (1/1) ... [2021-12-14 15:17:34,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 15:17:34,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 15:17:35,040 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2021-12-14 15:17:35,061 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2021-12-14 15:17:35,070 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2021-12-14 15:17:35,078 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2021-12-14 15:17:35,089 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2021-12-14 15:17:35,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2021-12-14 15:17:35,104 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2021-12-14 15:17:35,111 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2021-12-14 15:17:35,129 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2021-12-14 15:17:35,139 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2021-12-14 15:17:35,146 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2021-12-14 15:17:35,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:17:35,196 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 15:17:35,282 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[16948,16961] [2021-12-14 15:17:35,318 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[23372,23385] [2021-12-14 15:17:35,336 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26559,26572] [2021-12-14 15:17:35,346 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[29535,29548] [2021-12-14 15:17:35,357 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33298,33311] [2021-12-14 15:17:35,381 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[36350,36363] [2021-12-14 15:17:35,390 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[39535,39548] [2021-12-14 15:17:35,412 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42506,42519] [2021-12-14 15:17:35,417 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[45890,45903] [2021-12-14 15:17:35,420 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[48876,48889] [2021-12-14 15:17:35,446 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.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[52025,52038] [2021-12-14 15:17:35,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:17:35,474 INFO L208 MainTranslator]: Completed translation [2021-12-14 15:17:35,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35 WrapperNode [2021-12-14 15:17:35,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 15:17:35,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 15:17:35,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 15:17:35,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 15:17:35,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,580 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2580 [2021-12-14 15:17:35,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 15:17:35,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 15:17:35,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 15:17:35,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 15:17:35,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 15:17:35,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 15:17:35,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 15:17:35,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 15:17:35,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (1/1) ... [2021-12-14 15:17:35,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:17:35,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:17:35,720 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) [2021-12-14 15:17:35,728 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 [2021-12-14 15:17:35,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 15:17:35,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 15:17:35,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 15:17:35,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 15:17:35,858 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 15:17:35,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 15:17:36,910 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 15:17:36,919 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 15:17:36,919 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 15:17:36,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:17:36 BoogieIcfgContainer [2021-12-14 15:17:36,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 15:17:36,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 15:17:36,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 15:17:36,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 15:17:36,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:17:34" (1/3) ... [2021-12-14 15:17:36,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400284e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:17:36, skipping insertion in model container [2021-12-14 15:17:36,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:17:35" (2/3) ... [2021-12-14 15:17:36,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@400284e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:17:36, skipping insertion in model container [2021-12-14 15:17:36,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:17:36" (3/3) ... [2021-12-14 15:17:36,927 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-12-14 15:17:36,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 15:17:36,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-12-14 15:17:36,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 15:17:36,966 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 [2021-12-14 15:17:36,966 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-12-14 15:17:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:36,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-14 15:17:36,995 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:36,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:17:36,996 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:37,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:37,000 INFO L85 PathProgramCache]: Analyzing trace with hash 702631990, now seen corresponding path program 1 times [2021-12-14 15:17:37,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:37,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002779262] [2021-12-14 15:17:37,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:37,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:37,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:37,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:37,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002779262] [2021-12-14 15:17:37,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002779262] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:37,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:37,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 15:17:37,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702887638] [2021-12-14 15:17:37,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:37,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 15:17:37,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:37,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 15:17:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 15:17:37,352 INFO L87 Difference]: Start difference. First operand has 537 states, 525 states have (on average 1.8304761904761904) internal successors, (961), 536 states have internal predecessors, (961), 0 states have call successors, (0), 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 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:37,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:37,805 INFO L93 Difference]: Finished difference Result 740 states and 1288 transitions. [2021-12-14 15:17:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 15:17:37,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-12-14 15:17:37,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:37,822 INFO L225 Difference]: With dead ends: 740 [2021-12-14 15:17:37,822 INFO L226 Difference]: Without dead ends: 470 [2021-12-14 15:17:37,829 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 [2021-12-14 15:17:37,832 INFO L933 BasicCegarLoop]: 456 mSDtfsCounter, 2316 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:37,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2316 Valid, 518 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 15:17:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-12-14 15:17:37,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2021-12-14 15:17:37,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 459 states have (on average 1.2962962962962963) internal successors, (595), 469 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:37,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 595 transitions. [2021-12-14 15:17:37,908 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 595 transitions. Word has length 59 [2021-12-14 15:17:37,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:37,908 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 595 transitions. [2021-12-14 15:17:37,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 595 transitions. [2021-12-14 15:17:37,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-14 15:17:37,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:37,911 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] [2021-12-14 15:17:37,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 15:17:37,911 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:37,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:37,912 INFO L85 PathProgramCache]: Analyzing trace with hash 728409025, now seen corresponding path program 1 times [2021-12-14 15:17:37,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:37,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122008618] [2021-12-14 15:17:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:37,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:37,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:37,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122008618] [2021-12-14 15:17:37,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122008618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:37,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:37,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 15:17:37,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546581638] [2021-12-14 15:17:37,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:37,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 15:17:37,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:37,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 15:17:37,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 15:17:37,988 INFO L87 Difference]: Start difference. First operand 470 states and 595 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:38,210 INFO L93 Difference]: Finished difference Result 600 states and 761 transitions. [2021-12-14 15:17:38,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 15:17:38,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-12-14 15:17:38,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:38,212 INFO L225 Difference]: With dead ends: 600 [2021-12-14 15:17:38,213 INFO L226 Difference]: Without dead ends: 356 [2021-12-14 15:17:38,213 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 [2021-12-14 15:17:38,214 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 1295 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:38,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 243 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 15:17:38,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-12-14 15:17:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2021-12-14 15:17:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 345 states have (on average 1.3101449275362318) internal successors, (452), 355 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 452 transitions. [2021-12-14 15:17:38,241 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 452 transitions. Word has length 59 [2021-12-14 15:17:38,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:38,241 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 452 transitions. [2021-12-14 15:17:38,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,242 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 452 transitions. [2021-12-14 15:17:38,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-14 15:17:38,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:38,244 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] [2021-12-14 15:17:38,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 15:17:38,245 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:38,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:38,245 INFO L85 PathProgramCache]: Analyzing trace with hash -466198780, now seen corresponding path program 1 times [2021-12-14 15:17:38,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:38,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177373072] [2021-12-14 15:17:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:38,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:38,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:38,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177373072] [2021-12-14 15:17:38,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177373072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:38,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:38,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 15:17:38,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710029620] [2021-12-14 15:17:38,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:38,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 15:17:38,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:38,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 15:17:38,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 15:17:38,385 INFO L87 Difference]: Start difference. First operand 356 states and 452 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:38,622 INFO L93 Difference]: Finished difference Result 668 states and 866 transitions. [2021-12-14 15:17:38,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 15:17:38,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-12-14 15:17:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:38,624 INFO L225 Difference]: With dead ends: 668 [2021-12-14 15:17:38,624 INFO L226 Difference]: Without dead ends: 474 [2021-12-14 15:17:38,625 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 [2021-12-14 15:17:38,625 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1574 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:38,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1574 Valid, 339 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 15:17:38,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-12-14 15:17:38,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 420. [2021-12-14 15:17:38,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 409 states have (on average 1.371638141809291) internal successors, (561), 419 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 561 transitions. [2021-12-14 15:17:38,661 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 561 transitions. Word has length 59 [2021-12-14 15:17:38,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:38,661 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 561 transitions. [2021-12-14 15:17:38,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 561 transitions. [2021-12-14 15:17:38,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-14 15:17:38,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:38,662 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] [2021-12-14 15:17:38,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 15:17:38,662 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:38,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:38,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1447561490, now seen corresponding path program 1 times [2021-12-14 15:17:38,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:38,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915229059] [2021-12-14 15:17:38,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:38,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:38,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:38,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915229059] [2021-12-14 15:17:38,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915229059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:38,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:38,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 15:17:38,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102994454] [2021-12-14 15:17:38,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:38,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 15:17:38,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:38,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 15:17:38,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 15:17:38,716 INFO L87 Difference]: Start difference. First operand 420 states and 561 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:38,843 INFO L93 Difference]: Finished difference Result 576 states and 768 transitions. [2021-12-14 15:17:38,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 15:17:38,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-12-14 15:17:38,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:38,845 INFO L225 Difference]: With dead ends: 576 [2021-12-14 15:17:38,845 INFO L226 Difference]: Without dead ends: 337 [2021-12-14 15:17:38,845 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 [2021-12-14 15:17:38,847 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 858 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:38,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 195 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 15:17:38,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-12-14 15:17:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2021-12-14 15:17:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3742331288343559) internal successors, (448), 336 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 448 transitions. [2021-12-14 15:17:38,862 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 448 transitions. Word has length 60 [2021-12-14 15:17:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:38,863 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 448 transitions. [2021-12-14 15:17:38,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:38,863 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 448 transitions. [2021-12-14 15:17:38,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-14 15:17:38,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:38,865 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] [2021-12-14 15:17:38,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 15:17:38,865 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:38,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:38,867 INFO L85 PathProgramCache]: Analyzing trace with hash -944801897, now seen corresponding path program 1 times [2021-12-14 15:17:38,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:38,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994468458] [2021-12-14 15:17:38,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:38,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:38,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:38,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994468458] [2021-12-14 15:17:38,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994468458] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:38,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:38,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:38,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646213639] [2021-12-14 15:17:38,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:38,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:38,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:38,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:39,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:39,002 INFO L87 Difference]: Start difference. First operand 337 states and 448 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:39,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:39,571 INFO L93 Difference]: Finished difference Result 882 states and 1236 transitions. [2021-12-14 15:17:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:39,572 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2021-12-14 15:17:39,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:39,575 INFO L225 Difference]: With dead ends: 882 [2021-12-14 15:17:39,576 INFO L226 Difference]: Without dead ends: 764 [2021-12-14 15:17:39,581 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 [2021-12-14 15:17:39,582 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 1981 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:39,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1981 Valid, 898 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 15:17:39,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2021-12-14 15:17:39,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 337. [2021-12-14 15:17:39,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3711656441717792) internal successors, (447), 336 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:39,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 447 transitions. [2021-12-14 15:17:39,601 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 447 transitions. Word has length 61 [2021-12-14 15:17:39,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:39,603 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 447 transitions. [2021-12-14 15:17:39,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 447 transitions. [2021-12-14 15:17:39,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-14 15:17:39,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:39,604 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] [2021-12-14 15:17:39,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 15:17:39,605 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:39,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:39,605 INFO L85 PathProgramCache]: Analyzing trace with hash 448084895, now seen corresponding path program 1 times [2021-12-14 15:17:39,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:39,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553818966] [2021-12-14 15:17:39,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:39,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:39,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:39,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:39,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553818966] [2021-12-14 15:17:39,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553818966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:39,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:39,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:39,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528092416] [2021-12-14 15:17:39,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:39,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:39,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:39,718 INFO L87 Difference]: Start difference. First operand 337 states and 447 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:40,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:40,177 INFO L93 Difference]: Finished difference Result 778 states and 1072 transitions. [2021-12-14 15:17:40,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:40,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2021-12-14 15:17:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:40,179 INFO L225 Difference]: With dead ends: 778 [2021-12-14 15:17:40,180 INFO L226 Difference]: Without dead ends: 638 [2021-12-14 15:17:40,180 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 [2021-12-14 15:17:40,182 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 1558 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:40,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1558 Valid, 871 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 15:17:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-12-14 15:17:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 337. [2021-12-14 15:17:40,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3680981595092025) internal successors, (446), 336 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:40,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 446 transitions. [2021-12-14 15:17:40,201 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 446 transitions. Word has length 61 [2021-12-14 15:17:40,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:40,202 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 446 transitions. [2021-12-14 15:17:40,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:40,202 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 446 transitions. [2021-12-14 15:17:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-14 15:17:40,202 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:40,203 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] [2021-12-14 15:17:40,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 15:17:40,203 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:40,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:40,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1014019097, now seen corresponding path program 1 times [2021-12-14 15:17:40,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:40,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217719647] [2021-12-14 15:17:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:40,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:40,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:40,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217719647] [2021-12-14 15:17:40,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217719647] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:40,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:40,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-14 15:17:40,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738374453] [2021-12-14 15:17:40,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:40,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 15:17:40,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:40,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 15:17:40,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-14 15:17:40,302 INFO L87 Difference]: Start difference. First operand 337 states and 446 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:40,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:40,569 INFO L93 Difference]: Finished difference Result 687 states and 915 transitions. [2021-12-14 15:17:40,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 15:17:40,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2021-12-14 15:17:40,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:40,571 INFO L225 Difference]: With dead ends: 687 [2021-12-14 15:17:40,571 INFO L226 Difference]: Without dead ends: 502 [2021-12-14 15:17:40,572 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 [2021-12-14 15:17:40,572 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 1620 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:40,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 449 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 15:17:40,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-12-14 15:17:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 337. [2021-12-14 15:17:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3650306748466257) internal successors, (445), 336 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:40,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 445 transitions. [2021-12-14 15:17:40,588 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 445 transitions. Word has length 61 [2021-12-14 15:17:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:40,588 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 445 transitions. [2021-12-14 15:17:40,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 445 transitions. [2021-12-14 15:17:40,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 15:17:40,589 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:40,589 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] [2021-12-14 15:17:40,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 15:17:40,589 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:40,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:40,590 INFO L85 PathProgramCache]: Analyzing trace with hash -471732578, now seen corresponding path program 1 times [2021-12-14 15:17:40,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:40,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837597423] [2021-12-14 15:17:40,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:40,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:40,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:40,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837597423] [2021-12-14 15:17:40,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837597423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:40,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:40,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:40,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689643842] [2021-12-14 15:17:40,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:40,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:40,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:40,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:40,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:40,665 INFO L87 Difference]: Start difference. First operand 337 states and 445 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:41,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:41,161 INFO L93 Difference]: Finished difference Result 781 states and 1077 transitions. [2021-12-14 15:17:41,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:41,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-14 15:17:41,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:41,164 INFO L225 Difference]: With dead ends: 781 [2021-12-14 15:17:41,165 INFO L226 Difference]: Without dead ends: 764 [2021-12-14 15:17:41,165 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 [2021-12-14 15:17:41,165 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 1370 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:41,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 1043 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 15:17:41,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2021-12-14 15:17:41,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 337. [2021-12-14 15:17:41,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3588957055214723) internal successors, (443), 336 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:41,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 443 transitions. [2021-12-14 15:17:41,184 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 443 transitions. Word has length 63 [2021-12-14 15:17:41,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:41,185 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 443 transitions. [2021-12-14 15:17:41,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:41,185 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 443 transitions. [2021-12-14 15:17:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 15:17:41,186 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:41,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:17:41,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 15:17:41,186 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:41,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:41,187 INFO L85 PathProgramCache]: Analyzing trace with hash -157878139, now seen corresponding path program 1 times [2021-12-14 15:17:41,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:41,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595356302] [2021-12-14 15:17:41,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:41,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:41,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:41,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595356302] [2021-12-14 15:17:41,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595356302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:41,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:41,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:41,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245753124] [2021-12-14 15:17:41,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:41,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:41,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:41,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:41,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:41,271 INFO L87 Difference]: Start difference. First operand 337 states and 443 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:41,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:41,855 INFO L93 Difference]: Finished difference Result 749 states and 1026 transitions. [2021-12-14 15:17:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:41,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-14 15:17:41,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:41,858 INFO L225 Difference]: With dead ends: 749 [2021-12-14 15:17:41,858 INFO L226 Difference]: Without dead ends: 744 [2021-12-14 15:17:41,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-14 15:17:41,858 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 1209 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:41,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1209 Valid, 1313 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 15:17:41,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-12-14 15:17:41,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2021-12-14 15:17:41,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.352760736196319) internal successors, (441), 336 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:41,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 441 transitions. [2021-12-14 15:17:41,877 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 441 transitions. Word has length 63 [2021-12-14 15:17:41,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:41,877 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 441 transitions. [2021-12-14 15:17:41,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:41,877 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 441 transitions. [2021-12-14 15:17:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 15:17:41,894 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:41,894 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] [2021-12-14 15:17:41,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 15:17:41,894 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:41,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:41,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2011079223, now seen corresponding path program 1 times [2021-12-14 15:17:41,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:41,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850716881] [2021-12-14 15:17:41,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:41,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:41,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:41,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:41,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850716881] [2021-12-14 15:17:41,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850716881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:41,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:41,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:41,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404116202] [2021-12-14 15:17:41,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:41,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:41,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:41,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:41,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:41,992 INFO L87 Difference]: Start difference. First operand 337 states and 441 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:42,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:42,338 INFO L93 Difference]: Finished difference Result 674 states and 929 transitions. [2021-12-14 15:17:42,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 15:17:42,339 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-14 15:17:42,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:42,340 INFO L225 Difference]: With dead ends: 674 [2021-12-14 15:17:42,341 INFO L226 Difference]: Without dead ends: 504 [2021-12-14 15:17:42,341 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 [2021-12-14 15:17:42,341 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 1766 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:42,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1766 Valid, 858 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 15:17:42,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-12-14 15:17:42,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 337. [2021-12-14 15:17:42,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3466257668711656) internal successors, (439), 336 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 439 transitions. [2021-12-14 15:17:42,358 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 439 transitions. Word has length 63 [2021-12-14 15:17:42,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:42,358 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 439 transitions. [2021-12-14 15:17:42,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:42,359 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 439 transitions. [2021-12-14 15:17:42,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 15:17:42,359 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:42,359 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] [2021-12-14 15:17:42,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 15:17:42,360 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:42,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash 556986468, now seen corresponding path program 1 times [2021-12-14 15:17:42,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:42,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300606875] [2021-12-14 15:17:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:42,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:42,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:42,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:42,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300606875] [2021-12-14 15:17:42,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300606875] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:42,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:42,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:42,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311965151] [2021-12-14 15:17:42,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:42,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:42,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:42,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:42,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:42,442 INFO L87 Difference]: Start difference. First operand 337 states and 439 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:42,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:42,941 INFO L93 Difference]: Finished difference Result 887 states and 1232 transitions. [2021-12-14 15:17:42,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:42,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-14 15:17:42,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:42,943 INFO L225 Difference]: With dead ends: 887 [2021-12-14 15:17:42,944 INFO L226 Difference]: Without dead ends: 764 [2021-12-14 15:17:42,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-12-14 15:17:42,945 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 1797 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:42,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1797 Valid, 1219 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 15:17:42,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2021-12-14 15:17:42,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 337. [2021-12-14 15:17:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.343558282208589) internal successors, (438), 336 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:42,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 438 transitions. [2021-12-14 15:17:42,964 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 438 transitions. Word has length 63 [2021-12-14 15:17:42,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:42,964 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 438 transitions. [2021-12-14 15:17:42,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:42,965 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 438 transitions. [2021-12-14 15:17:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 15:17:42,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:42,965 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] [2021-12-14 15:17:42,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-14 15:17:42,966 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash -33472501, now seen corresponding path program 1 times [2021-12-14 15:17:42,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:42,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268330409] [2021-12-14 15:17:42,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:42,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:43,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:43,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268330409] [2021-12-14 15:17:43,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268330409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:43,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:43,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:43,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292014417] [2021-12-14 15:17:43,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:43,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:43,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:43,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:43,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:43,037 INFO L87 Difference]: Start difference. First operand 337 states and 438 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:43,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:43,549 INFO L93 Difference]: Finished difference Result 855 states and 1182 transitions. [2021-12-14 15:17:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:43,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-14 15:17:43,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:43,552 INFO L225 Difference]: With dead ends: 855 [2021-12-14 15:17:43,552 INFO L226 Difference]: Without dead ends: 744 [2021-12-14 15:17:43,552 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 [2021-12-14 15:17:43,553 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 1654 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:43,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1654 Valid, 1059 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 15:17:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-12-14 15:17:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2021-12-14 15:17:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3404907975460123) internal successors, (437), 336 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:43,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 437 transitions. [2021-12-14 15:17:43,572 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 437 transitions. Word has length 63 [2021-12-14 15:17:43,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:43,572 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 437 transitions. [2021-12-14 15:17:43,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 437 transitions. [2021-12-14 15:17:43,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 15:17:43,573 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:43,573 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] [2021-12-14 15:17:43,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-14 15:17:43,573 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:43,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:43,573 INFO L85 PathProgramCache]: Analyzing trace with hash -653212004, now seen corresponding path program 1 times [2021-12-14 15:17:43,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:43,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187170942] [2021-12-14 15:17:43,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:43,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:43,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:43,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187170942] [2021-12-14 15:17:43,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187170942] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:43,649 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:43,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:43,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087107092] [2021-12-14 15:17:43,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:43,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:43,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:43,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:43,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:43,651 INFO L87 Difference]: Start difference. First operand 337 states and 437 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:44,643 INFO L93 Difference]: Finished difference Result 749 states and 1020 transitions. [2021-12-14 15:17:44,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:44,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-14 15:17:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:44,646 INFO L225 Difference]: With dead ends: 749 [2021-12-14 15:17:44,646 INFO L226 Difference]: Without dead ends: 744 [2021-12-14 15:17:44,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-14 15:17:44,648 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 1121 mSDsluCounter, 1036 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:44,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 1340 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-14 15:17:44,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-12-14 15:17:44,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2021-12-14 15:17:44,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.3374233128834356) internal successors, (436), 336 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:44,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 436 transitions. [2021-12-14 15:17:44,678 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 436 transitions. Word has length 63 [2021-12-14 15:17:44,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:44,678 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 436 transitions. [2021-12-14 15:17:44,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 436 transitions. [2021-12-14 15:17:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 15:17:44,679 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:44,680 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] [2021-12-14 15:17:44,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-14 15:17:44,681 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:44,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:44,681 INFO L85 PathProgramCache]: Analyzing trace with hash 543767036, now seen corresponding path program 1 times [2021-12-14 15:17:44,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:44,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682476841] [2021-12-14 15:17:44,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:44,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:44,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:44,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:44,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682476841] [2021-12-14 15:17:44,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682476841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:44,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:44,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:44,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675698577] [2021-12-14 15:17:44,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:44,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:44,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:44,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:44,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:44,781 INFO L87 Difference]: Start difference. First operand 337 states and 436 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:45,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:45,432 INFO L93 Difference]: Finished difference Result 852 states and 1176 transitions. [2021-12-14 15:17:45,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:45,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-12-14 15:17:45,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:45,435 INFO L225 Difference]: With dead ends: 852 [2021-12-14 15:17:45,435 INFO L226 Difference]: Without dead ends: 744 [2021-12-14 15:17:45,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-12-14 15:17:45,436 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 1207 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:45,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 1332 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 15:17:45,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2021-12-14 15:17:45,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 337. [2021-12-14 15:17:45,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 326 states have (on average 1.334355828220859) internal successors, (435), 336 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:45,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 435 transitions. [2021-12-14 15:17:45,457 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 435 transitions. Word has length 63 [2021-12-14 15:17:45,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:45,457 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 435 transitions. [2021-12-14 15:17:45,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:45,458 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 435 transitions. [2021-12-14 15:17:45,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 15:17:45,458 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:45,458 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] [2021-12-14 15:17:45,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 15:17:45,459 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:45,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:45,459 INFO L85 PathProgramCache]: Analyzing trace with hash -2022048839, now seen corresponding path program 1 times [2021-12-14 15:17:45,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:45,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665260605] [2021-12-14 15:17:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:45,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:45,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:45,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:45,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665260605] [2021-12-14 15:17:45,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665260605] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:45,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:45,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-14 15:17:45,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825626836] [2021-12-14 15:17:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:45,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-14 15:17:45,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-14 15:17:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-14 15:17:45,689 INFO L87 Difference]: Start difference. First operand 337 states and 435 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:46,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:46,554 INFO L93 Difference]: Finished difference Result 841 states and 1101 transitions. [2021-12-14 15:17:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-14 15:17:46,555 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-12-14 15:17:46,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:46,558 INFO L225 Difference]: With dead ends: 841 [2021-12-14 15:17:46,558 INFO L226 Difference]: Without dead ends: 837 [2021-12-14 15:17:46,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-12-14 15:17:46,559 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 1668 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:46,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1668 Valid, 2345 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 15:17:46,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2021-12-14 15:17:46,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 333. [2021-12-14 15:17:46,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 323 states have (on average 1.3343653250773995) internal successors, (431), 332 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 431 transitions. [2021-12-14 15:17:46,590 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 431 transitions. Word has length 65 [2021-12-14 15:17:46,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:46,590 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 431 transitions. [2021-12-14 15:17:46,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:46,590 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 431 transitions. [2021-12-14 15:17:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 15:17:46,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:46,591 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] [2021-12-14 15:17:46,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-14 15:17:46,592 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash 71013216, now seen corresponding path program 1 times [2021-12-14 15:17:46,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:46,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082241266] [2021-12-14 15:17:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:46,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:47,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:47,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:47,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082241266] [2021-12-14 15:17:47,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082241266] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:47,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:47,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-12-14 15:17:47,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493189793] [2021-12-14 15:17:47,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:47,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-14 15:17:47,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:47,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-14 15:17:47,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2021-12-14 15:17:47,051 INFO L87 Difference]: Start difference. First operand 333 states and 431 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:49,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:49,238 INFO L93 Difference]: Finished difference Result 765 states and 1026 transitions. [2021-12-14 15:17:49,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-14 15:17:49,238 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-12-14 15:17:49,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:49,240 INFO L225 Difference]: With dead ends: 765 [2021-12-14 15:17:49,240 INFO L226 Difference]: Without dead ends: 652 [2021-12-14 15:17:49,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=259, Invalid=1301, Unknown=0, NotChecked=0, Total=1560 [2021-12-14 15:17:49,241 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 1186 mSDsluCounter, 5325 mSDsCounter, 0 mSdLazyCounter, 3254 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 5834 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:49,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1186 Valid, 5834 Invalid, 3310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3254 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-14 15:17:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-12-14 15:17:49,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 332. [2021-12-14 15:17:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 322 states have (on average 1.329192546583851) internal successors, (428), 331 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 428 transitions. [2021-12-14 15:17:49,268 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 428 transitions. Word has length 65 [2021-12-14 15:17:49,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:49,268 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 428 transitions. [2021-12-14 15:17:49,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:49,269 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 428 transitions. [2021-12-14 15:17:49,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 15:17:49,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:49,270 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] [2021-12-14 15:17:49,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-14 15:17:49,270 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:49,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:49,270 INFO L85 PathProgramCache]: Analyzing trace with hash -907607662, now seen corresponding path program 1 times [2021-12-14 15:17:49,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:49,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455381324] [2021-12-14 15:17:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:49,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:49,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:49,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:49,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455381324] [2021-12-14 15:17:49,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455381324] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:49,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:49,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-14 15:17:49,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252429197] [2021-12-14 15:17:49,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:49,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-14 15:17:49,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-14 15:17:49,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-14 15:17:49,500 INFO L87 Difference]: Start difference. First operand 332 states and 428 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:50,295 INFO L93 Difference]: Finished difference Result 935 states and 1247 transitions. [2021-12-14 15:17:50,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:50,296 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-12-14 15:17:50,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:50,298 INFO L225 Difference]: With dead ends: 935 [2021-12-14 15:17:50,298 INFO L226 Difference]: Without dead ends: 823 [2021-12-14 15:17:50,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-12-14 15:17:50,303 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1909 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:50,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1909 Valid, 2209 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 15:17:50,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2021-12-14 15:17:50,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 322. [2021-12-14 15:17:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 313 states have (on average 1.3194888178913737) internal successors, (413), 321 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 413 transitions. [2021-12-14 15:17:50,333 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 413 transitions. Word has length 65 [2021-12-14 15:17:50,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:50,333 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 413 transitions. [2021-12-14 15:17:50,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 413 transitions. [2021-12-14 15:17:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 15:17:50,334 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:50,335 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] [2021-12-14 15:17:50,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-14 15:17:50,335 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:50,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1360022849, now seen corresponding path program 1 times [2021-12-14 15:17:50,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:50,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306896589] [2021-12-14 15:17:50,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:50,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:50,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:50,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306896589] [2021-12-14 15:17:50,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306896589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:50,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:50,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-14 15:17:50,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422677595] [2021-12-14 15:17:50,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:50,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 15:17:50,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:50,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 15:17:50,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-14 15:17:50,594 INFO L87 Difference]: Start difference. First operand 322 states and 413 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:51,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:51,095 INFO L93 Difference]: Finished difference Result 836 states and 1138 transitions. [2021-12-14 15:17:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 15:17:51,111 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2021-12-14 15:17:51,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:51,114 INFO L225 Difference]: With dead ends: 836 [2021-12-14 15:17:51,114 INFO L226 Difference]: Without dead ends: 667 [2021-12-14 15:17:51,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2021-12-14 15:17:51,115 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1340 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:51,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 1589 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 15:17:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2021-12-14 15:17:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 259. [2021-12-14 15:17:51,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 254 states have (on average 1.3228346456692914) internal successors, (336), 258 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 336 transitions. [2021-12-14 15:17:51,147 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 336 transitions. Word has length 65 [2021-12-14 15:17:51,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:51,148 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 336 transitions. [2021-12-14 15:17:51,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:51,148 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 336 transitions. [2021-12-14 15:17:51,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-14 15:17:51,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:51,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:17:51,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 15:17:51,149 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:51,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:51,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1910519334, now seen corresponding path program 1 times [2021-12-14 15:17:51,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:51,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985978238] [2021-12-14 15:17:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:51,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:51,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:51,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985978238] [2021-12-14 15:17:51,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985978238] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:51,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:51,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-14 15:17:51,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911357875] [2021-12-14 15:17:51,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:51,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 15:17:51,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:51,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 15:17:51,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-14 15:17:51,330 INFO L87 Difference]: Start difference. First operand 259 states and 336 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:52,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:52,204 INFO L93 Difference]: Finished difference Result 709 states and 976 transitions. [2021-12-14 15:17:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-14 15:17:52,205 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-12-14 15:17:52,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:52,206 INFO L225 Difference]: With dead ends: 709 [2021-12-14 15:17:52,207 INFO L226 Difference]: Without dead ends: 702 [2021-12-14 15:17:52,207 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2021-12-14 15:17:52,208 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 2652 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:52,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2652 Valid, 736 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 15:17:52,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-12-14 15:17:52,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 263. [2021-12-14 15:17:52,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.317829457364341) internal successors, (340), 262 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:52,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 340 transitions. [2021-12-14 15:17:52,238 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 340 transitions. Word has length 66 [2021-12-14 15:17:52,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:52,238 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 340 transitions. [2021-12-14 15:17:52,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:52,239 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 340 transitions. [2021-12-14 15:17:52,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-14 15:17:52,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:52,239 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] [2021-12-14 15:17:52,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 15:17:52,240 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:52,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:52,240 INFO L85 PathProgramCache]: Analyzing trace with hash -595757799, now seen corresponding path program 1 times [2021-12-14 15:17:52,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:52,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602605288] [2021-12-14 15:17:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:52,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:52,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:52,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:52,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602605288] [2021-12-14 15:17:52,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602605288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:52,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:52,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 15:17:52,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889727690] [2021-12-14 15:17:52,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:52,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 15:17:52,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:52,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 15:17:52,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-14 15:17:52,460 INFO L87 Difference]: Start difference. First operand 263 states and 340 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:52,845 INFO L93 Difference]: Finished difference Result 531 states and 728 transitions. [2021-12-14 15:17:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 15:17:52,845 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-12-14 15:17:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:52,847 INFO L225 Difference]: With dead ends: 531 [2021-12-14 15:17:52,847 INFO L226 Difference]: Without dead ends: 384 [2021-12-14 15:17:52,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2021-12-14 15:17:52,848 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 673 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:52,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 1851 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 15:17:52,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-12-14 15:17:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 222. [2021-12-14 15:17:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.3287671232876712) internal successors, (291), 221 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:52,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 291 transitions. [2021-12-14 15:17:52,875 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 291 transitions. Word has length 66 [2021-12-14 15:17:52,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:52,875 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 291 transitions. [2021-12-14 15:17:52,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:52,875 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 291 transitions. [2021-12-14 15:17:52,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-14 15:17:52,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:52,876 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] [2021-12-14 15:17:52,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-14 15:17:52,876 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:52,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2098457973, now seen corresponding path program 1 times [2021-12-14 15:17:52,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:52,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517751684] [2021-12-14 15:17:52,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:52,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:52,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:52,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:52,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517751684] [2021-12-14 15:17:52,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517751684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:52,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:52,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:52,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61828410] [2021-12-14 15:17:52,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:52,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:52,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:52,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:52,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:52,947 INFO L87 Difference]: Start difference. First operand 222 states and 291 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:53,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:53,288 INFO L93 Difference]: Finished difference Result 371 states and 498 transitions. [2021-12-14 15:17:53,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 15:17:53,299 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-12-14 15:17:53,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:53,306 INFO L225 Difference]: With dead ends: 371 [2021-12-14 15:17:53,306 INFO L226 Difference]: Without dead ends: 364 [2021-12-14 15:17:53,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2021-12-14 15:17:53,307 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 1004 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:53,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 439 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 15:17:53,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-12-14 15:17:53,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 222. [2021-12-14 15:17:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.3242009132420092) internal successors, (290), 221 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 290 transitions. [2021-12-14 15:17:53,360 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 290 transitions. Word has length 66 [2021-12-14 15:17:53,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:53,360 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 290 transitions. [2021-12-14 15:17:53,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 290 transitions. [2021-12-14 15:17:53,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-14 15:17:53,375 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:53,375 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:17:53,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-14 15:17:53,376 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:53,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:53,376 INFO L85 PathProgramCache]: Analyzing trace with hash 476193166, now seen corresponding path program 1 times [2021-12-14 15:17:53,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:53,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329111510] [2021-12-14 15:17:53,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:53,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:53,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:53,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:53,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329111510] [2021-12-14 15:17:53,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329111510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:53,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:53,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 15:17:53,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901001042] [2021-12-14 15:17:53,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:53,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 15:17:53,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:53,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 15:17:53,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:17:53,524 INFO L87 Difference]: Start difference. First operand 222 states and 290 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:53,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:53,988 INFO L93 Difference]: Finished difference Result 524 states and 716 transitions. [2021-12-14 15:17:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 15:17:53,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-12-14 15:17:53,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:53,991 INFO L225 Difference]: With dead ends: 524 [2021-12-14 15:17:53,991 INFO L226 Difference]: Without dead ends: 388 [2021-12-14 15:17:53,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-12-14 15:17:53,992 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 820 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:53,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 590 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 15:17:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-12-14 15:17:54,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 222. [2021-12-14 15:17:54,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 219 states have (on average 1.3150684931506849) internal successors, (288), 221 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:54,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 288 transitions. [2021-12-14 15:17:54,057 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 288 transitions. Word has length 66 [2021-12-14 15:17:54,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:54,057 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 288 transitions. [2021-12-14 15:17:54,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 288 transitions. [2021-12-14 15:17:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-14 15:17:54,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:54,058 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] [2021-12-14 15:17:54,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-14 15:17:54,058 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:54,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1262128080, now seen corresponding path program 1 times [2021-12-14 15:17:54,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:54,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469404896] [2021-12-14 15:17:54,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:54,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:54,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:54,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469404896] [2021-12-14 15:17:54,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469404896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:54,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:54,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-12-14 15:17:54,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348669157] [2021-12-14 15:17:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:54,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-14 15:17:54,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:54,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-14 15:17:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-12-14 15:17:54,869 INFO L87 Difference]: Start difference. First operand 222 states and 288 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:55,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:55,895 INFO L93 Difference]: Finished difference Result 254 states and 321 transitions. [2021-12-14 15:17:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-14 15:17:55,896 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2021-12-14 15:17:55,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:55,897 INFO L225 Difference]: With dead ends: 254 [2021-12-14 15:17:55,897 INFO L226 Difference]: Without dead ends: 246 [2021-12-14 15:17:55,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=315, Invalid=1491, Unknown=0, NotChecked=0, Total=1806 [2021-12-14 15:17:55,898 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 569 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:55,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [569 Valid, 2012 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 15:17:55,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-12-14 15:17:55,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 231. [2021-12-14 15:17:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 228 states have (on average 1.3114035087719298) internal successors, (299), 230 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 299 transitions. [2021-12-14 15:17:55,928 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 299 transitions. Word has length 68 [2021-12-14 15:17:55,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:55,928 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 299 transitions. [2021-12-14 15:17:55,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 299 transitions. [2021-12-14 15:17:55,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-14 15:17:55,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:55,929 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] [2021-12-14 15:17:55,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-14 15:17:55,930 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:55,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:55,930 INFO L85 PathProgramCache]: Analyzing trace with hash 989039241, now seen corresponding path program 1 times [2021-12-14 15:17:55,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:55,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797192625] [2021-12-14 15:17:55,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:55,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:56,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:56,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:56,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797192625] [2021-12-14 15:17:56,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797192625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:56,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:56,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-12-14 15:17:56,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125752470] [2021-12-14 15:17:56,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:56,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-14 15:17:56,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:56,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-14 15:17:56,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2021-12-14 15:17:56,452 INFO L87 Difference]: Start difference. First operand 231 states and 299 transitions. Second operand has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:57,920 INFO L93 Difference]: Finished difference Result 818 states and 1157 transitions. [2021-12-14 15:17:57,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-14 15:17:57,921 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2021-12-14 15:17:57,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:57,923 INFO L225 Difference]: With dead ends: 818 [2021-12-14 15:17:57,923 INFO L226 Difference]: Without dead ends: 812 [2021-12-14 15:17:57,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=272, Invalid=1450, Unknown=0, NotChecked=0, Total=1722 [2021-12-14 15:17:57,925 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 1003 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 3522 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:57,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 3522 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-14 15:17:57,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2021-12-14 15:17:57,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 237. [2021-12-14 15:17:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 234 states have (on average 1.311965811965812) internal successors, (307), 236 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 307 transitions. [2021-12-14 15:17:57,958 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 307 transitions. Word has length 68 [2021-12-14 15:17:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:57,958 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 307 transitions. [2021-12-14 15:17:57,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 307 transitions. [2021-12-14 15:17:57,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 15:17:57,959 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:57,959 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] [2021-12-14 15:17:57,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-14 15:17:57,960 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1368297463, now seen corresponding path program 1 times [2021-12-14 15:17:57,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:57,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536422944] [2021-12-14 15:17:57,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:57,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:58,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:58,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:58,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536422944] [2021-12-14 15:17:58,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536422944] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:58,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:58,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 15:17:58,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26225214] [2021-12-14 15:17:58,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:58,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 15:17:58,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:58,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 15:17:58,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-14 15:17:58,155 INFO L87 Difference]: Start difference. First operand 237 states and 307 transitions. Second operand has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:58,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:17:58,827 INFO L93 Difference]: Finished difference Result 651 states and 897 transitions. [2021-12-14 15:17:58,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 15:17:58,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-12-14 15:17:58,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:17:58,829 INFO L225 Difference]: With dead ends: 651 [2021-12-14 15:17:58,830 INFO L226 Difference]: Without dead ends: 636 [2021-12-14 15:17:58,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2021-12-14 15:17:58,830 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 853 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 15:17:58,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 2366 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 15:17:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2021-12-14 15:17:58,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 221. [2021-12-14 15:17:58,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 219 states have (on average 1.3150684931506849) internal successors, (288), 220 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 288 transitions. [2021-12-14 15:17:58,872 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 288 transitions. Word has length 69 [2021-12-14 15:17:58,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:17:58,873 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 288 transitions. [2021-12-14 15:17:58,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.75) internal successors, (69), 12 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:17:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 288 transitions. [2021-12-14 15:17:58,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 15:17:58,873 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:17:58,873 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] [2021-12-14 15:17:58,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-14 15:17:58,874 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:17:58,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:17:58,874 INFO L85 PathProgramCache]: Analyzing trace with hash 882869858, now seen corresponding path program 1 times [2021-12-14 15:17:58,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:17:58,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178227741] [2021-12-14 15:17:58,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:17:58,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:17:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:17:59,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:17:59,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:17:59,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178227741] [2021-12-14 15:17:59,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178227741] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:17:59,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:17:59,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-12-14 15:17:59,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506431173] [2021-12-14 15:17:59,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:17:59,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-14 15:17:59,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:17:59,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-14 15:17:59,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-12-14 15:17:59,378 INFO L87 Difference]: Start difference. First operand 221 states and 288 transitions. Second operand has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 18 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:00,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:00,939 INFO L93 Difference]: Finished difference Result 1123 states and 1612 transitions. [2021-12-14 15:18:00,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-14 15:18:00,940 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 18 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-12-14 15:18:00,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:00,942 INFO L225 Difference]: With dead ends: 1123 [2021-12-14 15:18:00,942 INFO L226 Difference]: Without dead ends: 1117 [2021-12-14 15:18:00,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2021-12-14 15:18:00,943 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1580 mSDsluCounter, 3406 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 3784 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:00,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1580 Valid, 3784 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-14 15:18:00,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2021-12-14 15:18:01,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 216. [2021-12-14 15:18:01,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 214 states have (on average 1.3177570093457944) internal successors, (282), 215 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 282 transitions. [2021-12-14 15:18:01,007 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 282 transitions. Word has length 69 [2021-12-14 15:18:01,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:01,008 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 282 transitions. [2021-12-14 15:18:01,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 18 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:01,008 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 282 transitions. [2021-12-14 15:18:01,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 15:18:01,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:01,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:18:01,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-14 15:18:01,010 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:01,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:01,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1637741865, now seen corresponding path program 1 times [2021-12-14 15:18:01,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:01,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563178718] [2021-12-14 15:18:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:01,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:01,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:01,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:01,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563178718] [2021-12-14 15:18:01,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563178718] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:01,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:01,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-12-14 15:18:01,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113047751] [2021-12-14 15:18:01,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:01,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-14 15:18:01,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:01,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-14 15:18:01,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-12-14 15:18:01,576 INFO L87 Difference]: Start difference. First operand 216 states and 282 transitions. Second operand has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 17 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:04,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:04,191 INFO L93 Difference]: Finished difference Result 1648 states and 2376 transitions. [2021-12-14 15:18:04,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-14 15:18:04,192 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 17 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-12-14 15:18:04,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:04,196 INFO L225 Difference]: With dead ends: 1648 [2021-12-14 15:18:04,196 INFO L226 Difference]: Without dead ends: 1642 [2021-12-14 15:18:04,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=300, Invalid=1260, Unknown=0, NotChecked=0, Total=1560 [2021-12-14 15:18:04,197 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1152 mSDsluCounter, 5624 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 6119 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:04,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1152 Valid, 6119 Invalid, 2026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 15:18:04,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2021-12-14 15:18:04,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 216. [2021-12-14 15:18:04,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 214 states have (on average 1.3130841121495327) internal successors, (281), 215 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 281 transitions. [2021-12-14 15:18:04,266 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 281 transitions. Word has length 69 [2021-12-14 15:18:04,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:04,266 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 281 transitions. [2021-12-14 15:18:04,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 17 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 281 transitions. [2021-12-14 15:18:04,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 15:18:04,267 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:04,267 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] [2021-12-14 15:18:04,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-14 15:18:04,268 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:04,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash 360048320, now seen corresponding path program 1 times [2021-12-14 15:18:04,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:04,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430390145] [2021-12-14 15:18:04,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:04,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:04,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:04,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430390145] [2021-12-14 15:18:04,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430390145] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:04,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:04,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-14 15:18:04,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162373856] [2021-12-14 15:18:04,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:04,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-14 15:18:04,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:04,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-14 15:18:04,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-14 15:18:04,590 INFO L87 Difference]: Start difference. First operand 216 states and 281 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:05,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:05,684 INFO L93 Difference]: Finished difference Result 1030 states and 1475 transitions. [2021-12-14 15:18:05,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-14 15:18:05,684 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-12-14 15:18:05,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:05,687 INFO L225 Difference]: With dead ends: 1030 [2021-12-14 15:18:05,687 INFO L226 Difference]: Without dead ends: 1024 [2021-12-14 15:18:05,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-12-14 15:18:05,688 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1008 mSDsluCounter, 2767 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:05,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 3126 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 15:18:05,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2021-12-14 15:18:05,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 204. [2021-12-14 15:18:05,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.3152709359605912) internal successors, (267), 203 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 267 transitions. [2021-12-14 15:18:05,729 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 267 transitions. Word has length 69 [2021-12-14 15:18:05,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:05,730 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 267 transitions. [2021-12-14 15:18:05,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:05,730 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 267 transitions. [2021-12-14 15:18:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-14 15:18:05,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:05,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:18:05,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-14 15:18:05,731 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:05,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:05,731 INFO L85 PathProgramCache]: Analyzing trace with hash 262304865, now seen corresponding path program 1 times [2021-12-14 15:18:05,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:05,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095360004] [2021-12-14 15:18:05,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:05,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:05,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:05,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:05,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095360004] [2021-12-14 15:18:05,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095360004] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:05,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:05,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 15:18:05,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323174845] [2021-12-14 15:18:05,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:05,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 15:18:05,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:05,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 15:18:05,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 15:18:05,785 INFO L87 Difference]: Start difference. First operand 204 states and 267 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:06,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:06,133 INFO L93 Difference]: Finished difference Result 1052 states and 1547 transitions. [2021-12-14 15:18:06,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 15:18:06,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-12-14 15:18:06,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:06,136 INFO L225 Difference]: With dead ends: 1052 [2021-12-14 15:18:06,136 INFO L226 Difference]: Without dead ends: 946 [2021-12-14 15:18:06,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-14 15:18:06,141 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 902 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:06,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [902 Valid, 960 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:06,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2021-12-14 15:18:06,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 308. [2021-12-14 15:18:06,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 307 states have (on average 1.3745928338762214) internal successors, (422), 307 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:06,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 422 transitions. [2021-12-14 15:18:06,216 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 422 transitions. Word has length 91 [2021-12-14 15:18:06,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:06,217 INFO L470 AbstractCegarLoop]: Abstraction has 308 states and 422 transitions. [2021-12-14 15:18:06,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:06,217 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 422 transitions. [2021-12-14 15:18:06,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-14 15:18:06,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:06,218 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] [2021-12-14 15:18:06,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-14 15:18:06,218 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:06,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:06,219 INFO L85 PathProgramCache]: Analyzing trace with hash -403802728, now seen corresponding path program 1 times [2021-12-14 15:18:06,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:06,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45230362] [2021-12-14 15:18:06,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:06,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:06,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:06,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45230362] [2021-12-14 15:18:06,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45230362] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:06,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:06,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 15:18:06,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928303607] [2021-12-14 15:18:06,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:06,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 15:18:06,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:06,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 15:18:06,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 15:18:06,268 INFO L87 Difference]: Start difference. First operand 308 states and 422 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2021-12-14 15:18:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:06,692 INFO L93 Difference]: Finished difference Result 1254 states and 1838 transitions. [2021-12-14 15:18:06,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 15:18:06,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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 [2021-12-14 15:18:06,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:06,700 INFO L225 Difference]: With dead ends: 1254 [2021-12-14 15:18:06,723 INFO L226 Difference]: Without dead ends: 1044 [2021-12-14 15:18:06,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:18:06,724 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 653 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:06,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [653 Valid, 666 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:06,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2021-12-14 15:18:06,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 516. [2021-12-14 15:18:06,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.4252427184466019) internal successors, (734), 515 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:06,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 734 transitions. [2021-12-14 15:18:06,864 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 734 transitions. Word has length 93 [2021-12-14 15:18:06,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:06,864 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 734 transitions. [2021-12-14 15:18:06,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2021-12-14 15:18:06,864 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 734 transitions. [2021-12-14 15:18:06,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-14 15:18:06,866 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:06,866 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] [2021-12-14 15:18:06,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-14 15:18:06,866 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:06,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:06,867 INFO L85 PathProgramCache]: Analyzing trace with hash 638646745, now seen corresponding path program 1 times [2021-12-14 15:18:06,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:06,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224015676] [2021-12-14 15:18:06,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:06,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:06,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:06,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:06,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224015676] [2021-12-14 15:18:06,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224015676] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:06,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:06,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 15:18:06,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312067289] [2021-12-14 15:18:06,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:06,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 15:18:06,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:06,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 15:18:06,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-14 15:18:06,950 INFO L87 Difference]: Start difference. First operand 516 states and 734 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2021-12-14 15:18:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:07,158 INFO L93 Difference]: Finished difference Result 936 states and 1362 transitions. [2021-12-14 15:18:07,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 15:18:07,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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 [2021-12-14 15:18:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:07,161 INFO L225 Difference]: With dead ends: 936 [2021-12-14 15:18:07,161 INFO L226 Difference]: Without dead ends: 518 [2021-12-14 15:18:07,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-12-14 15:18:07,162 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 484 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:07,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 380 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:07,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-12-14 15:18:07,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 516. [2021-12-14 15:18:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 515 states have (on average 1.4174757281553398) internal successors, (730), 515 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 730 transitions. [2021-12-14 15:18:07,326 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 730 transitions. Word has length 93 [2021-12-14 15:18:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:07,327 INFO L470 AbstractCegarLoop]: Abstraction has 516 states and 730 transitions. [2021-12-14 15:18:07,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2021-12-14 15:18:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 730 transitions. [2021-12-14 15:18:07,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-14 15:18:07,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:07,328 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] [2021-12-14 15:18:07,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-14 15:18:07,328 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash 572153233, now seen corresponding path program 1 times [2021-12-14 15:18:07,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:07,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890564145] [2021-12-14 15:18:07,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:07,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:07,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:07,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890564145] [2021-12-14 15:18:07,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890564145] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:07,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:07,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 15:18:07,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293426245] [2021-12-14 15:18:07,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:07,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 15:18:07,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:07,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 15:18:07,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 15:18:07,358 INFO L87 Difference]: Start difference. First operand 516 states and 730 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2021-12-14 15:18:07,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:07,636 INFO L93 Difference]: Finished difference Result 1300 states and 1888 transitions. [2021-12-14 15:18:07,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 15:18:07,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 [2021-12-14 15:18:07,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:07,638 INFO L225 Difference]: With dead ends: 1300 [2021-12-14 15:18:07,638 INFO L226 Difference]: Without dead ends: 882 [2021-12-14 15:18:07,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 15:18:07,639 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 89 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:07,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:07,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-12-14 15:18:07,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 872. [2021-12-14 15:18:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 871 states have (on average 1.4190585533869116) internal successors, (1236), 871 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1236 transitions. [2021-12-14 15:18:07,900 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1236 transitions. Word has length 93 [2021-12-14 15:18:07,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:07,900 INFO L470 AbstractCegarLoop]: Abstraction has 872 states and 1236 transitions. [2021-12-14 15:18:07,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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) [2021-12-14 15:18:07,900 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1236 transitions. [2021-12-14 15:18:07,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-14 15:18:07,901 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:07,901 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] [2021-12-14 15:18:07,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-14 15:18:07,901 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:07,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:07,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1651929496, now seen corresponding path program 1 times [2021-12-14 15:18:07,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:07,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254758614] [2021-12-14 15:18:07,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:07,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:07,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:07,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:07,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254758614] [2021-12-14 15:18:07,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254758614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:07,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:07,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 15:18:07,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853250092] [2021-12-14 15:18:07,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:07,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 15:18:07,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:07,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 15:18:07,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 15:18:07,944 INFO L87 Difference]: Start difference. First operand 872 states and 1236 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2021-12-14 15:18:08,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:08,725 INFO L93 Difference]: Finished difference Result 2620 states and 3785 transitions. [2021-12-14 15:18:08,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 15:18:08,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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 [2021-12-14 15:18:08,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:08,730 INFO L225 Difference]: With dead ends: 2620 [2021-12-14 15:18:08,730 INFO L226 Difference]: Without dead ends: 2232 [2021-12-14 15:18:08,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:18:08,753 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 620 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:08,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 681 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:08,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2021-12-14 15:18:09,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1452. [2021-12-14 15:18:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1451 states have (on average 1.4321157822191593) internal successors, (2078), 1451 states have internal predecessors, (2078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 2078 transitions. [2021-12-14 15:18:09,217 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 2078 transitions. Word has length 93 [2021-12-14 15:18:09,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:09,218 INFO L470 AbstractCegarLoop]: Abstraction has 1452 states and 2078 transitions. [2021-12-14 15:18:09,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2021-12-14 15:18:09,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 2078 transitions. [2021-12-14 15:18:09,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-14 15:18:09,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:09,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:18:09,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-14 15:18:09,219 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:09,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:09,220 INFO L85 PathProgramCache]: Analyzing trace with hash -767888488, now seen corresponding path program 1 times [2021-12-14 15:18:09,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:09,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470985516] [2021-12-14 15:18:09,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:09,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:09,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:09,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470985516] [2021-12-14 15:18:09,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470985516] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:09,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:09,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 15:18:09,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947709382] [2021-12-14 15:18:09,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:09,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 15:18:09,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:09,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 15:18:09,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 15:18:09,268 INFO L87 Difference]: Start difference. First operand 1452 states and 2078 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2021-12-14 15:18:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:10,152 INFO L93 Difference]: Finished difference Result 3006 states and 4347 transitions. [2021-12-14 15:18:10,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 15:18:10,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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 [2021-12-14 15:18:10,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:10,159 INFO L225 Difference]: With dead ends: 3006 [2021-12-14 15:18:10,159 INFO L226 Difference]: Without dead ends: 2618 [2021-12-14 15:18:10,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:18:10,160 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 586 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:10,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 748 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:10,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2021-12-14 15:18:10,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 1838. [2021-12-14 15:18:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.437125748502994) internal successors, (2640), 1837 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2640 transitions. [2021-12-14 15:18:10,804 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2640 transitions. Word has length 93 [2021-12-14 15:18:10,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:10,804 INFO L470 AbstractCegarLoop]: Abstraction has 1838 states and 2640 transitions. [2021-12-14 15:18:10,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 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) [2021-12-14 15:18:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2640 transitions. [2021-12-14 15:18:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-14 15:18:10,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:10,806 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] [2021-12-14 15:18:10,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-14 15:18:10,806 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:10,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:10,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2122104904, now seen corresponding path program 1 times [2021-12-14 15:18:10,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:10,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124103815] [2021-12-14 15:18:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:10,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:10,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:10,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:10,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124103815] [2021-12-14 15:18:10,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124103815] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:10,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:10,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 15:18:10,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817293150] [2021-12-14 15:18:10,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:10,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 15:18:10,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:10,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 15:18:10,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 15:18:10,835 INFO L87 Difference]: Start difference. First operand 1838 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2021-12-14 15:18:12,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:12,030 INFO L93 Difference]: Finished difference Result 5174 states and 7454 transitions. [2021-12-14 15:18:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 15:18:12,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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 [2021-12-14 15:18:12,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:12,039 INFO L225 Difference]: With dead ends: 5174 [2021-12-14 15:18:12,039 INFO L226 Difference]: Without dead ends: 3434 [2021-12-14 15:18:12,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 15:18:12,041 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 73 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:12,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:12,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2021-12-14 15:18:13,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3288. [2021-12-14 15:18:13,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3287 states have (on average 1.431092181320353) internal successors, (4704), 3287 states have internal predecessors, (4704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4704 transitions. [2021-12-14 15:18:13,140 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4704 transitions. Word has length 94 [2021-12-14 15:18:13,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:13,141 INFO L470 AbstractCegarLoop]: Abstraction has 3288 states and 4704 transitions. [2021-12-14 15:18:13,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 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) [2021-12-14 15:18:13,141 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4704 transitions. [2021-12-14 15:18:13,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-14 15:18:13,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:13,142 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] [2021-12-14 15:18:13,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-14 15:18:13,143 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:13,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:13,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1022881993, now seen corresponding path program 1 times [2021-12-14 15:18:13,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:13,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816149812] [2021-12-14 15:18:13,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:13,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:13,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:13,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:13,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816149812] [2021-12-14 15:18:13,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816149812] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:13,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:13,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 15:18:13,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979427767] [2021-12-14 15:18:13,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:13,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 15:18:13,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 15:18:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 15:18:13,177 INFO L87 Difference]: Start difference. First operand 3288 states and 4704 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 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) [2021-12-14 15:18:15,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:15,258 INFO L93 Difference]: Finished difference Result 9380 states and 13394 transitions. [2021-12-14 15:18:15,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 15:18:15,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 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 [2021-12-14 15:18:15,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:15,272 INFO L225 Difference]: With dead ends: 9380 [2021-12-14 15:18:15,272 INFO L226 Difference]: Without dead ends: 6190 [2021-12-14 15:18:15,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 15:18:15,287 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 66 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:15,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-12-14 15:18:17,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5900. [2021-12-14 15:18:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5900 states, 5899 states have (on average 1.4178674351585014) internal successors, (8364), 5899 states have internal predecessors, (8364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:17,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5900 states to 5900 states and 8364 transitions. [2021-12-14 15:18:17,481 INFO L78 Accepts]: Start accepts. Automaton has 5900 states and 8364 transitions. Word has length 95 [2021-12-14 15:18:17,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:17,481 INFO L470 AbstractCegarLoop]: Abstraction has 5900 states and 8364 transitions. [2021-12-14 15:18:17,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 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) [2021-12-14 15:18:17,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5900 states and 8364 transitions. [2021-12-14 15:18:17,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-14 15:18:17,482 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:17,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:18:17,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-14 15:18:17,482 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:17,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:17,483 INFO L85 PathProgramCache]: Analyzing trace with hash -369091068, now seen corresponding path program 1 times [2021-12-14 15:18:17,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:17,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676002628] [2021-12-14 15:18:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:17,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:17,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:17,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676002628] [2021-12-14 15:18:17,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676002628] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:17,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:17,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 15:18:17,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962235941] [2021-12-14 15:18:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:17,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 15:18:17,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:17,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 15:18:17,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 15:18:17,509 INFO L87 Difference]: Start difference. First operand 5900 states and 8364 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:21,706 INFO L93 Difference]: Finished difference Result 16928 states and 23870 transitions. [2021-12-14 15:18:21,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 15:18:21,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-12-14 15:18:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:21,742 INFO L225 Difference]: With dead ends: 16928 [2021-12-14 15:18:21,742 INFO L226 Difference]: Without dead ends: 11126 [2021-12-14 15:18:21,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 15:18:21,748 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 56 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:21,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 333 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:21,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11126 states. [2021-12-14 15:18:25,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11126 to 10548. [2021-12-14 15:18:25,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10548 states, 10547 states have (on average 1.3983123162984734) internal successors, (14748), 10547 states have internal predecessors, (14748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:25,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10548 states to 10548 states and 14748 transitions. [2021-12-14 15:18:25,605 INFO L78 Accepts]: Start accepts. Automaton has 10548 states and 14748 transitions. Word has length 96 [2021-12-14 15:18:25,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:25,605 INFO L470 AbstractCegarLoop]: Abstraction has 10548 states and 14748 transitions. [2021-12-14 15:18:25,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:25,606 INFO L276 IsEmpty]: Start isEmpty. Operand 10548 states and 14748 transitions. [2021-12-14 15:18:25,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-14 15:18:25,606 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:25,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:18:25,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-14 15:18:25,607 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:25,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:25,608 INFO L85 PathProgramCache]: Analyzing trace with hash -553088427, now seen corresponding path program 1 times [2021-12-14 15:18:25,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:25,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474435559] [2021-12-14 15:18:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:25,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:25,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:25,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474435559] [2021-12-14 15:18:25,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474435559] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:25,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:25,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 15:18:25,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356364583] [2021-12-14 15:18:25,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:25,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 15:18:25,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:25,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 15:18:25,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 15:18:25,655 INFO L87 Difference]: Start difference. First operand 10548 states and 14748 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:18:32,714 INFO L93 Difference]: Finished difference Result 18658 states and 25852 transitions. [2021-12-14 15:18:32,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 15:18:32,715 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-12-14 15:18:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:18:32,792 INFO L225 Difference]: With dead ends: 18658 [2021-12-14 15:18:32,792 INFO L226 Difference]: Without dead ends: 18656 [2021-12-14 15:18:32,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-14 15:18:32,807 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 259 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:18:32,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 843 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:18:32,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18656 states. [2021-12-14 15:18:36,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18656 to 10932. [2021-12-14 15:18:36,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10932 states, 10931 states have (on average 1.3770011892781997) internal successors, (15052), 10931 states have internal predecessors, (15052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10932 states to 10932 states and 15052 transitions. [2021-12-14 15:18:36,995 INFO L78 Accepts]: Start accepts. Automaton has 10932 states and 15052 transitions. Word has length 97 [2021-12-14 15:18:36,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:18:36,996 INFO L470 AbstractCegarLoop]: Abstraction has 10932 states and 15052 transitions. [2021-12-14 15:18:36,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 15:18:36,996 INFO L276 IsEmpty]: Start isEmpty. Operand 10932 states and 15052 transitions. [2021-12-14 15:18:36,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-14 15:18:36,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:18:36,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:18:36,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-14 15:18:36,997 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-12-14 15:18:36,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:18:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash -404836723, now seen corresponding path program 1 times [2021-12-14 15:18:36,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:18:36,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039936492] [2021-12-14 15:18:36,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:18:36,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:18:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:18:37,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 15:18:37,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:18:37,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039936492] [2021-12-14 15:18:37,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039936492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:18:37,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:18:37,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 15:18:37,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471727647] [2021-12-14 15:18:37,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:18:37,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 15:18:37,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:18:37,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 15:18:37,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 15:18:37,079 INFO L87 Difference]: Start difference. First operand 10932 states and 15052 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)